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Home > Public Information Chronology of the Isaac Newton Group of Telescopes

Chronology of the Isaac Newton Group of Telescopes

Jacobus Kapteyn Telescope  Isaac Newton Telescope  William Herschel Telescope

25 Dec 1642 Isaac Newton born
1672 Isaac Newton builds the first reflector telescope
1675 The Royal Observatory founded at Greenwich by King Charles II
20 Mar 1727 Death of Isaac Newton
15 Nov 1738 Frederick William Herschel born
1781 William Herschel discovers Uranus
26 Aug 1822 Death of Frederick William Herschel
19 Jan 1851 Jacobus Cornelius Kapteyn born
1856 First astronomical observations in the Canary Islands by Charles Piazzi Smyth 
1922 Kapteyn publishes his first attemp at a Galaxy model derived from counts of stars
18 Jun 1922 Death of Jacobus Cornelius Kapteyn
1945-46 Proposal for large telescope for use of all British astronomers
1946 Jul 7 First day of official celebration of tercentenary of Newton's birth. Announcement that funds voted for construction of 100-inch telescope
1948-1958 The Royal Observatory is moved from London to Herstmonceux Castle in Sussex, and renamed the Royal Greenwich Observatory
1949 McGregor Fundation donates 98-inch glass mirror blank (originally intended for telescope for Michigan University Observatory)
1959 Isaac Newton Telescope ordered
1967 INT Inauguration at Herstmonceux
Jan Hermann Brück, Astronomer Royal for Scotland, first proposes the construction of a Northern Hemisphere Observatory (NHO) 
1 Dec Isaac Newton Telescope is inaugurated by Queen Elizabeth II
Jan Formal start of the project 'Northern Hemisphere Observatory (NHO)'. Sir Fred Hoyle takes the chair at the first meeting of the Northern Hemisphere Review Committee
Apr John Alexander of the Royal Greenwich Observatory visits La Palma
Aug Professor M.F. Walker of Lick Observatory, California includes La Palma in a list of oceanic islands that might be used as astronomical sites 
JOSO site testers visit La Palma 
Nov  Flight over the mountain top in La Palma by JOSO (Joint Organization for Solar Observations) team
Dec John Alexander states: "The ideal solution may be an international observatory site on the island of La Palma." 
2 Jul First astronomical observations on Roque de Los Muchachos peak. They were carried out by a JOSO team consisting of G. Hosinsky, L. Staveland and H. Wöhl from Jul 2 to Jul 21
11 Jul First British astronomers arrive in La Palma
6 Aug First observations by the British site-testing team. These were carried out by Dr T. T. Gough and Mr C. M. Heath of the Royal Observatory, Edinburgh in Fuente Nueva, where the ING telescopes are erected today
May The NHO Planning Committee decides not to consider La Palma any more due to deep pessimism about the prospects for agreement on the use of La Palma site
Aug After high international activity, Spanish authorities issue an invitation to form a Joint Astronomical Site Survey to undertake an international programme of site testing on the Canary Islands
Nov The proposals for the present WHT, INT and JKT are accepted by the Science Research Council
25 Nov Site testing observations begin in Fuente Nueva
Dec Representatives of Denmark, Sweden, Germany and the United Kingdom are invited by the Rector of the University of La Laguna and the Presidents of the local Governments (Cabildos) of Tenerife and La Palma to discuss arrangements for the survey programme. During a aircraft flight above the Roque de Los Muchachos peak, these representatives "[...] felt that this must be the site for the new observatory"
Nov Tests for night site observing are completed
Building of the JKT starts at Grubb Parsons
4 Mar INT closed down at Herstmonceux
8 Mar A purchase order for the 4.2-m Cervit blank for the primary mirror placed with Owens-Illinois
26 May Almost 10 years after the first committee met to consider a Northern Hemisphere Observatory, a treaty governing its establishment is signed. Spain agrees to let Denmark, Sweden, and Britain build on La Palma, in exchange for 20 percent of the observing time. The treaty is signed in the Cabildo of la Palma 
4 Jun INT is dismantled and transferred to Newcastle for modification prior to shipment to La Palma
Completion of JKT at Grubb Parsons
May The SRC approves the 4.2m William Herschel Telescope
Completion of INT new mirror at Grubb Parsons.
Mar 1-m telescope installed at Herstmonceux for testing before shipment La Palma
18 Jun SERC-ZWO agreement signed. They agree to share all the parts of the projects, including the construction, operation and use of the telescopes, each providing manpower, capital and running costs in the ratio 4:1.
Jul Isaac Newton Telescope installation begins
September First RGO staff come to live on La Palma
Nov Contract placed for construction of the William Herschel Telescope
September First Dutch technician begins work at Herstmonceux under Anglo-Dutch collaborative programme
10 Dec INT primary mirror arrives on La Palma
23 Jan Hand-over from the building contractor of INT building
May Construction of William Herschel Telescope building begins
Jun Harrier jet from Royal Navy makes an emergency landing on the SS Alraigo, a cargo ship carrying the 1-m telescope base plate
September La Palma Observers' Guide issued
Oct 1-m telescope delivered to La Palma and erected
Nov First light through the Carlsberg Automatic Meridian Circle
INT observes quasar Q0055-269, one of the most distant objects known in the universe (z=3.68). [more]
13/14 Feb 2.5-m Isaac Newton Telescope first light on La Palma. Its first views included the Crab Nebula, the Orion Nebula and the galaxies M51 and NGC 4151.
Mar First astronomical spectra obtained with INT Cassegrain spectrograph. First use of the Image Photon Counting System (IPCS) device on La Palma.
23 Mar First photograph with the Wide-field Photographic Camera on the JKT. First light on the JKT.
Apr Patrick Moore films Sky at Night on La Palma
29 May First scheduled observing on JKT
29 May First scheduled observing on INT 
JunFirst CCD detector in use at ING
September  Start of tests at Grubb Parsons of William Herschel Telescope
Nov First refereed paper using results from the ING telescopes: M V Penston & E Pérez, "An evolutionary link between Seyfert I and II galaxies?", MNRAS, 211, 33 (based on data obtained using the Isaac Newton Telescope).
Dec William Herschel Telescope dismantled, packed and stored. Effective closure of Grubb Parsons
Dec Faint-object spectrograph commissioned on Isaac Newton Telescope
First ever images from optical aperture synthesis [more]
Apr TAURUS commissioned on Isaac Newton Telescope
Jun  Completion of road to Roque de Los Muchachos Observatory
29 Jun Royal Inauguration of the Roque de Los Muchachos Observatory on La Palma
Jul First prime-focus images with Isaac Newton Telescope and CCD camera
Aug Opening of Residencia on Roque de Los Muchachos Observatory
September CCD camera commissioned at the f/15 Cassegrain focus of the Jacobus Kapteyn Telescope
INT observes an emission-line object in the core of M15 star cluster as the source responsible for the detected emission in X-ray. This object is later identified as a binary system [more ]
1 Jun First Light on the WHT
15 Aug First Light on TAURUS II
22 Aug First observing run relating to a PATT application. This was for a programme called 'TAURUS observations of rotation curves, intergalactic gas and star forming regions', Dr E A Valentijn from the Kapteyn Astronomical Institute is the principal investigator
OctFirst light on FOS-2 [more]
Li and Be abundance measurements give clues on cosmological evolution [more ]
AprThe Ground-based High Resolution Imaging Laboratory (GHRIL) sees first light [more]
31 OctThe Spanish Government approves the Sky Law
First images of features on the surface of a star (other than the Sun) [more ]
First detection of gravitational microlensing events [more ]
Identification and optical monitoring of a binary millisecond pulsar [more ]
AutumnFirst light on ISIS [more]
Starspots discovered in binary systems [more ]
INT discovers a quasar of redshift 4.7 which is the brightest object in the Universe at optical wavelengths [more ]
INT obtains the ever deepest B image [more ]
RGO moves to Cambridge
Jul The first infrared array is used at ING. It was a 58×62 pixel InSb chip mounted inside the FAST camera. [more]
NovFirst light on the Utrecht Echelle Spectrograph [more]
The best-ever stellar-size black hole candidate in a compact binary system is discovered [more ]
13 Mar The regulation of the Sky Law is approved by the Spanish Government
SN 1993J was the closest core-collapse supernova to have occurred this century and observable from the north. ING telescopes immediately set in motion an extensive programme of astrometric, photometric (UVBRI) and low- and high- dispersion spectroscopic monitoring. The INT spectrum of SN1993J obtained one day after the discovery was the first recorded anywhere at any wavelength. A public on-line archive consisting of optical photometric and spectroscopic data is offered to the community. Over 70 sites worldwide have availed themselves of this unique facility [more
NovFirst light on the Prime Focus Camera [more]
A major campaign is undertaken to observe the impact on Jupiter of Comet Shoemaker-Levy 9 [more]
First ever spectroscopic map of an accretion-disk in a cataclysmic variable [ more]
OctFirst light on Autofib-2 [more]
First ever observations of a brown dwarf [more]
The deepest ground-based image in B-band [more]
AprFirst light on Wyffos spectrograph [more]
The WHT observes a star in real-time evolution, the Sakurai object [more ]
First detection of spiral waves in stellar accretion disc [more ]
28 Feb First detection of a gamma-ray burst in optical light [more ]
16 Apr Comet Hale-Bopp: First ever images of a neutral gas tail in a comet (discovered using the ING CoCAM camera) [more ]
MayFirst light on the Wide-Field Camera, a mosaic of 4 CCDs. [more ]
NovThe Richardson-Brearley Spectrograph is retired. The JKT becomes a single-instrument telescope dedicated to CCD imaging.
By observing distant type Ia supernovae, astronomers determine that the universe is expanding at an accelerating rate - an observation that implies the existence of a mysterious, self-repelling property of space first proposed by Albert Einstein, which he called the cosmological constant. This extraordinary finding is named by the journal 'Science' as Breakthrough of the Year for 1998 [more]
APM 08279+5255: a quasar about 100 times brighter than the next brightest object that has ever been observed [more ]
31 Oct Closure of RGO.
A new Local Group galaxy: The Cetus Dwarf Galaxy [more]
Cosmic flow of galaxies across one billion light years of the Universe [more]
Feb First on-sky observations using a Superconducting Tunnel Junction detector: First light on S-Cam [more]
Feb First light on Sauron Spectrograph [more]
September First light on the new Prime Focus Camera [more]
September First sodium laser beacon at La Palma [more]
Discovery of a Type Ia supernova progenitor [more]
New evidence that galaxies formed early in the history of the universe [more]
16 Mar First light of INGRID [more]
2 Jun Crown Prince of Spain observes at the William Herschel Telescope [more]
23 Jul Comet Linear blows up in full view of the JKT one billion light years of the Universe [more]
14 Aug First light of NAOMI [more]
The WHT one of the most science productive telescopes in the world [more]
A giant stream of metal-rich stars in the halo of the galaxy M31 [more]
Completely dark galaxies [more]
Tidal streams in the Galactic halo [more]
International review of ING [more]
7-11 May First scientific conference organised by ING [more]
16 Jul First light on the Planetary Nebula Spectrograph [more]
24 Jul First light on the new Small Fibre Module of Autofib2/WYFFOS [more]
20 Oct Science from La Palma - Past, Present and Future, a workshop organised by ING in honour of Dr Paul Murdin. [more]
First ever adaptive optics observation of a Near Earth Asteroid [more]
May First Light on OSCA [more]
16 May First Light on ULTRACAM [more]
27-31 May A Euroconference Organised by the ING: “Symbiotic Stars Probing Stellar Evolution”, La Palma, 27–31 May 2002 [more]
31 Jul Decommissioning of UES
Aug RoboDIMM starts observing [more]
A huge ring surrounding the Milky Way [more]
9-11 Jan NAOMI Workshop [more ]
15 Feb First Light on LIRIS [more]
2 May Inauguration of GRACE [more]
6 May Signing of agreement with IAC to become a partner
26-30 May Satellites and Tidal Streams, an ING–IAC Joint Conference [more ]
17 Jul Decommissioning of IDS
31 Jul Shutdown of the JKT
Jul First light on OASIS [more]
23 Aug BBC's All Night Star Party ! [more]
Rings in the Haloes of Planetary Nebulae [more]
The Largest Known Planetary Nebula on the Sky [more]
First Detection of a Progenitor Star from a Normal Type II-P Supernova [more]
22 Apr First light on PlanetPol [more ]
27 Jul Commissioning of the new WYFFOS long camera [more ]
28 Oct Discovery of the companion star of Tycho´s supernova [more]
23 Nov First light on NAOMI's pyramid wavefront sensor [more]
28 Oct Discovery of the companion star of Tycho´s supernova [more ]
9-11 May Adaptive-Optics Assisted Integral-Field Spectroscopy Workshop [more ]
6-10 Jun 2nd Meeting on Hot Subdwarf Stars and Related Objects Conference [more ]
4 Jul Deep Impact mission observed at ING [more ]
14 Jul The Discovery of a Galaxy-Wide Superwind from a Young Massive Galaxy at Redshift z~3 [more ]
4 Aug Most of the Growth of Supermassive Black Holes is Obscured by Dust [more ]
11 Aug A Jet-Powered Bubble Formed in the Gas Around Black Hole Cygnus X-1 [more ]
14 Oct RAS Specialist Discussion Meeting on "Science from La Palma - Looking beyond 2009" [more ]
First Observational Evidence of a Dead Cataclysmic Variable [more]
A Gaseous Metal Disk Around a White Dwarf [more]
First Detection of Rubidium in Asymptotic Giant Branch Stars [more]
4 Apr Users' meeting at NAM 2006: Astronomy from La Palma: Developments and future directions
16-19 May Conference: The nature of V838 Monocerotis and its light echo [more]
1 Aug IDS spectrograph back to operation on the INT
3 Dec First light on an L3CCD detector on ISIS
10-16 Dec IAU Symposium 241: Stellar Populations as Building Blocks of Galaxies [more]
A giant outburst two years before the core-collapse of a massive star [more]
Observational Evidence that Outflows from AGNs Originate as Disk Winds Rotating a Super-Massive Black Hole [more]
The YORP Effect Detected on Near-Earth Asteroid 2000 PH5 [more]
1 Apr The UK's Science and Technology Facilities Council (STFC) replaces the Particle Physics and Astronomy Research Council (PPARC) as ING's owner.
18-22 Jun Conference: Asymmetrical Planetary Nebulae IV [more]
6 Jul First Light on GHaFaS [more ]
8 Aug 02:00 UT 1,000,000th CCD exposure obtained [more ]
27 Nov First Light on FastCam [more ]
3 Dec IPHAS Initial Data Release [more]
  The universe shines twice as bright [more]
  First results from the H-alpha galaxy survey [more]
  Detection of naphtalene cation in the interestellar medium [more]
  The extreme Kuiper-Belt binary 2011 QW322 [more]
23 Jun-5 Jul NEON observing school [more]
9 Oct First light on ExPo [more]
  First ground-based near-infrared direct detection of an extrasolar planet [more]
  First ever spectrum of an asteroid which hit the Earth [more]
  First spectroscopic observations using an electron-multiplying CCD [more]
  Earth's transmission spectrum from lunar eclipse observations [more]
  ING joins the International Year of Astronomy [more]
9 Jun First light on ACAM [more]
15 Jul New director for the ING [more]
  First ground-based near-infrared direct detection of an extrasolar planet [more]
  Super-Complex Organic Molecules Found in Interstellar Space [more]
  Comet P/2010 A2, an Activated Asteroid from the Main Asteroid Belt [more]
  PLC Technology Reduces Observing Overheads [more]
22-23 Mar Workshop on "Science with the WHT 2010-2020" [more]
29 Aug A stellar raffle [more]
19 Sep First On-Sky Demonstration of Multi-Object Adaptive Optics [more]
  Discovery of a new class of supernovae [more]
  Galaxy zoo supernovae and the WHT [more]
  The ATLAS3D Project: Replacing the Handle of Hubble’s Tuning Fork [more]
  ING Joins Efforts with GTC to Discover a Galactic Black Hole [more]
29 May Wide-Field Multi-Object Spectrograph WEAVE Proposed for WHT Prime Focus [more]
Riding the Wake of a Merging Galaxy Cluster [more]
Under the 'Dark Halo' Old Galaxies Have Many More Stars [more]
Masgomas-1: A Very Massive Stellar Cluster [more]
The Kepler-INT Survey [more]
The Transiting Earth [more]
Quantum Teleportation Experiment Sets a New Record [more]
The Cold Veil of the Milky Way Stellar Halo [more]
A 3D View of the Remnant of Nova Persei 1901 [more]
First Evidence of the Relation Between Jets in Planetary Nebulae and Mass Transfer and Accretion in Close Binaries [more]
A Hypergiant Star (Partially) Traversing the Yellow Evolutionary Void [more]
Imaging Polarimetry of Circumstellar Environments with ExPo [more]
22-23 March Workshop: La Palma and Calar Alto Observatories, Science in the Next Decade [more]
Probing Nuclear Activity Versus Star Formation Using Near-Infrared Multi-Object Spectroscopy [more]
Prof. Vikram Dhillon is Awarded the 2013 Royal Astronomical Society Jackson-Gwilt Medal for the Development and Operation of ULTRACAM [more]
SAURON Team Gets the 2013 Group Achievement Award of the Royal Astronomical Society [more]
Accretion on a Very Rapidly Spinning White Dwarf Observed Using an L3CCD [more]
A Dust-Obscured Massive Maximum-Starburst Galaxy in the Early Universe [more]
Discovery of the First Isolated Compact Elliptical (cE) Galaxy [more]
The Rapid Assembly of an Elliptical Galaxy of 400 Billion Solar Masses at a Redshift of 2.3 [more]
WHT and GTC Follow Up Main Belt Comet P/2012 T1 (PANSTARRS) [more]
The Isaac Newton Telescope Contributes to Near Earth Asteroid Research [more]
ING Science Strategy 2013 - 2022 [more]
RATS-Kepler - A Deep High-Cadence Survey of the Kepler Field [more]
The Music of the Galaxies [more]
Discovery of Circularly Polarised Light in a GRB Afterglow [more]
Spectro-Astrometry of V1515 Cygni with Adaptive Optics [more]
3D Map Shows Dusty Structure of the Milky Way [more]
Astronomers Release Most Detailed Catalogue Ever Made of the Visible Milky Way [more]
One of Most Accurate Measurements of the Size of a Trans-Neptunian Object from a Stellar Occultation [more]
15 Jan Ownership of the JKT is transferred to the IAC (Spain). The JKT becomes operated by the Southeastern Association for Research in Astronomy (SARA) under agreement with IAC [more]
21 Aug Report on instrumentation at the ING Telescopes [more]
15 DecArrival of the INT primary mirror
21 AugInstrumentation at the ING Telescopes - Results of a community pol [more]
20 FebFirst Observational Proof of Existence of a Double-Degenerate, Super-Chandrasekhar System [more]
15 AprFirst Near Earth Asteroids Discovered from La Palma [more]
04 MayMergers of Galaxy Clusters Can Trigger Star Formation [more]
05 MayBinarity in Planetary Nebulae Gives Clues to Understand the Abundance Discrepancy Problem [more]
07 MayFresh Evidence for How Water Reached Earth Found in Asteroid Debris [more]
13 JunFirst Light on PAU Camera [more]
23 JulWHT Observes Pluto in Support of NASAs New Horizons Mission [more]
16 OctCommon Accretion across Young Stellar Objects, White Dwarfs, Black Holes and Supermassive Black Holes [more]
23 OctING Telescopes Provide Unique Observations in Support of the ESA Rosetta Mission [more]
08 AprFirst light of the renewed JKT (SARA-RM) [more]
23 MayFirst Results from the PAU Camera (PAUCam) [more]
31 MayLucky Imaging of the Multiple T Tauri System LkHα 262/LkHα 263 [more]
12 JunStephen Hawking Visits La Palma [more]
25 JulAOLI Delivers Its First Adaptive-Optics Images [more]
26 JulAn Extremely Weak Magnetic Field in a White Dwarf [more]
05 SepCANARYs Sodium Laser Guide Star Successfully Commissioned [more]
30 DecA Deficit of Dark Matter in Elliptical Galaxies [more]
12 JanLyman-alpha Giant Halos Around Early Milky Way Type Galaxies [more]
06 FebTurbulence Velocity Profile Characterization with Stereo-SCIDAR [more]
23 FebSigning of the Agreement for the Scientific Exploitation of the William Herschel and Isaac Newton Telescopes [more]
23 FebNewly Discovered Planets Could Have Water on Their Surfaces [more]
31 MarStars Regularly Ripped Apart by Black Holes in Colliding Galaxies [more]
25 AugThe Puzzle of Ultra-Diffuse Galaxies [more]
25 SepThe Fastest-Spinning Known Millisecond Pulsar in the Galactic Field [more]
31 OctWHT Helps to Measure the Size of a Stellar-Mass Black Hole Jet [more]
02 NovHiPERCAM Successfully Commissioned on the William Herschel Telescope [more]
06 NovA/2017 U1 - An Interstellar Visitor [more]
01 DecIsaac Newton Telescope - 50 Years Since First Light [more]
15 JanHS2231+2441: A Star Killed Prematurely By Its Companion [more]
06 AprA 3D Map of the Infant Universe [more]
16 AprA Key Element to Life is Lacking in the Crab Nebula [more]
24 AprA New Method for Galaxy Density Wave Analysis [more]
28 MayDiscovery of a Massive Pulsar [more]
28 JunNew Telescope Control System at the WHT [more]
19 OctA Feasibility Study on the Photometric Detection of Quiescent Black Hole X-ray Binaries [more]
29 OctFirst Results from Lucky Spectroscopy, an Equivalent Technique to Lucky Imaging [more]
17 NovQuantum Entanglement Confirmed with Light from Distant Quasars [more]
07 DecThe Extended Planetary Nebula Spectrograph (ePN.S) Early-type Galaxy Survey [more]
01 MarDiscovery of Many New Ultra-Diffuse Galaxies in Galaxy Clusters [more]
30 SepAstronomers Detect Gas Molecules in Comet from Another Star [more]
09 OctDidier Queloz, Physics Nobel Prize Winner 2019, Develops an Advanced Terrestrial Planet Hunter for the Isaac Newton Telescope [more]
02 MarTwo Stars Merged to Form Massive White Dwarf [more]
16 MarING Operations on Hold Due to Coronavirus [more]
14 AprDiscovery of a Young Blazar Produced by the Merger of Two Galaxies [more]
16 SepInstallation of WEAVE's Prime Focus Optics and Spectrograph [more]
23 DecThe Great Conjunction of Jupiter and Saturn [more]
22 DecThe Largest Collection of Free-Floating Planets Discovered to Date [more]
19 JanFirst Detection of a Supernova Explosion Originating From a Wolf-Rayet Star [more]
06 MarThe 2021 La Palma volcano [more]
06 AprNew Detection Method for Quasars in the Early Universe [more]
26 MayThe WEAVE Instrument, Mounted on the Prime Focus of the WHT [more]
30 SepStart of LIFU-Mode Commissioning of WEAVE [more]
05 OctThe ING Congratulates the Nobel Prize in Physics 202 [more]
12 DecWEAVE First Light [more]
06 MarFirst On-Sky Demonstration of Tomographic Scintillation Correction [more]
26 AprResuelven el misterio de como se encienden los cuasare [more]
02 MayWEAVE Inauguration - 30 October 2023. First Announcement [more]
27 JunThe Shortest-Period Binary Star System Known in the Galaxy is Resisting Inspiral [more]
30 AugAsteroid 2023 DZ2, Discovered Using the INT and Headed for Earth, Will Not Impact [more]
31 OctInauguration of WEAVE [more]
30 NovA Giant Thin Stellar Stream in the Coma Galaxy Cluster [more]

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Last modified: 13 November 2023