Back نباض التوأم Arabic Geminga AST Geminga Catalan Geminga German Γκέμινγκα Greek Geminga Spanish Geminga Basque Geminga Finnish Geminga French Geminga Italian

Geminga

Geminga

Geminga as seen by Chandra and Spitzer
Credit: X-ray: NASA/CXC/PSU/B. Posselt et al; Infrared: NASA/JPL–Caltech
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Gemini
Right ascension 06h 33m 54.15s
Declination +17° 46′ 12.9″
Apparent magnitude (V) 25.5
Characteristics
Evolutionary stage Pulsar
Astrometry
Distance815 ly
(250+120
−62[1] pc)
Details
Age342,000 years
Other designations
SN 437, PSR B0633+17, PSR J0633+1746
Database references
SIMBADdata

Geminga /ɡəˈmɪŋɡə/ is a gamma ray and x-ray pulsar source thought to be a neutron star approximately 250 parsecs[1] (around 800 light-years) from the Sun in the constellation Gemini.

Its name, attributed by its discoverer Giovanni Bignami, is both a contraction of Gemini gamma-ray source, and a transcription of the words ghè minga (pronounced [ɡɛ ˈmĩːɡa]), meaning "it's not there" in the Milanese dialect of Lombard.[2] The name was approved by the International Astronomic Union on 4 April 2022.[3]

  1. ^ a b Cite error: The named reference Faherty 2007 was invoked but never defined (see the help page).
  2. ^ Bignami, G. F.; et al. (September 1983). "An identification for 'Geminga' (2CG 195+04) 1E 0630+178 – A unique object in the error box of the high-energy gamma-ray source". Astrophysical Journal. 272: L9–L13. Bibcode:1983ApJ...272L...9B. doi:10.1086/184107.
  3. ^ "Naming Stars".

Developed by StudentB