Living Person
James_Webb_Space_Telescope
is
As of April 19, 2026
4 years old
3 months!
Days Until Birthday
249 days
Days Since Birth
1,576 days
elapsed
Date of Birth
(December 25born, 2021 ) is
Sat
Day
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Year
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Moon
57.7 years old
Mercury
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2.3 years old
Jupiter
0.4 years old
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 Rendering of the fully deployed James Webb Space Telescope | |
| Names | Next Generation Space Telescope (NGST; 1996–2002) James Webb Space Telescope (JWST; 2002-Present) |
|---|---|
| Mission type | Astronomy |
| Operator | STScI (NASA) / ESA / CSA |
| COSPAR ID | 2021-130A |
| SATCAT no. | 50463 |
| Website | jwst webbtelescope |
| Mission duration |
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| Spacecraft properties | |
| Manufacturer | |
| Launch mass | 6,500 kg (14,300 lb) |
| Dimensions | 21.197 m × 14.162 m (69.54 ft × 46.46 ft), sunshield |
| Power | 2 kW |
| Start of mission | |
| Launch date | 25 December 2021, 12:20 UTC |
| Rocket | Ariane 5 ECA+ (S/N 5113, Flight VA256) |
| Launch site | Guiana, ELA-3 |
| Contractor | Arianespace |
| Entered service | 12 July 2022 |
| Orbital parameters | |
| Reference system | Sun–Earth L2 orbit |
| Regime | Halo orbit |
| Periapsis altitude | 250,000 km (160,000 mi) |
| Apoapsis altitude | 832,000 km (517,000 mi) |
| Period | 6 months |
| Main telescope | |
| Type | Korsch telescope |
| Diameter | 6.5 m (21 ft) |
| Focal length | 131.4 m (431 ft) |
| Focal ratio | f/20.2 |
| Collecting area | 25.4 m (273 sq ft) |
| Wavelengths | 0.6–28.5 μm (orange to mid-infrared) |
| Transponders | |
| Band |
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| Bandwidth |
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| Instruments | |
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 James Webb Space Telescope mission logo Large Strategic Science Missions Astrophysics Division | |
Look up "James_Webb_Space_Telescope" on WikipediaWikipedia Categories
- NASA programs
- 2021 in science
- Space telescopes
- Source attribution
- Infrared telescopes
- 2021 in French Guiana
- NASA space telescopes
- Exoplanet search projects
- James Webb Space Telescope
- Space telescopes of Canada
- Goddard Space Flight Center
- Northrop Grumman spacecraft
- Spacecraft launched in 2021
- Spacecraft using halo orbits
- Use American English from March 2018
- Spacecraft launched by Ariane rockets
- European Space Agency space telescopes
- Vague or ambiguous time from September 2022
- Artificial satellites at Earth-Sun Lagrange points
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