WHL0137-LS

"Earendel (star)" redirects here. For the Germanic mythological figure, see Aurvandil. For the Tolkien topic, see Earendil.

WHL0137-LS

James Webb Space Telescope image of galaxy cluster WHL0137-08 and Earendel
Observation data
Epoch J2000      Equinox J2000
Constellation Cetus
Right ascension 01h 37m 23.232s[1]
Declination –8° 27′ 52.20″[1]
Astrometry
DistanceComoving distance: 28 billion ly[2]
Characteristics
Spectral type B[3]
Apparent magnitude (F435W) 27.2[1]
Variable type Luminous blue variable star
Details[4]
if a single star
Mass20–200 M☉
Radius103–393 R☉
Luminosity631,000–3,981,000 L☉
Temperature13,000–16,000 K
if a binary (parameters highly uncertain)
Radiuscomponent 1: 23 R☉ component 2: 184 R☉
Luminositycomponent 1: 631,000 L☉ component 2: 200,000 L☉
Temperaturecomponent 1: 34,000 K component 2: 9,000 K
Other designations

WHL0137-LS, also known as Earendel, is a star located in the constellation of Cetus. Discovered in 2022 by the Hubble Space Telescope, it is the earliest and most distant known star, at a comoving distance of 28 billion light-years (8.6 billion parsecs).[2][5] The previous farthest known star, MACS J1149 Lensed Star 1, also known as Icarus, at a comoving distance of 14.4 billion light-years (4.4 billion parsecs),[6] was discovered by Hubble in 2018.[5] Stars like Earendel can be observed at cosmological distances thanks to the large magnification factors afforded by gravitational lensing, which can exceed 1,000. Other stars have been observed through this technique, such as Godzilla.

  1. ^ a b c Cite error: The named reference NAT-20220330 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Kabir was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference NASA-20230808 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference :0 was invoked but never defined (see the help page).
  5. ^ a b Gianopoulos, Andrea (30 March 2022). "Record Broken: Hubble Spots Farthest Star Ever Seen". NASA. Archived from the original on 30 March 2022. Retrieved 30 March 2022.
  6. ^ Staff (2018). "Cosmological information and results: redshift z=1.49". Wolfram Alpha. Retrieved 4 April 2018.