Gliese 440

Gliese 440

Gliese 440 seen by the Hubble Space Telescope[1]
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Musca[2]
Right ascension 11h 45m 42.91694s[3]
Declination −64° 50′ 29.4620″[3]
Apparent magnitude (V) 11.50[4]
Characteristics
Spectral type DQ6[5]
U−B color index -0.59[4]
B−V color index +0.19[4]
Astrometry
Proper motion (μ) RA: 2661.640 mas/yr[3]
Dec.: -344.933 mas/yr[3]
Parallax (π)215.6753 ± 0.0181 mas[3]
Distance15.123 ± 0.001 ly
(4.6366 ± 0.0004 pc)
Details
Mass0.56 ± 0.08[6] M☉
Radius0.01 R☉
Luminosity0.0005[7] L☉
Surface gravity (log g)8.27 ± 0.05[7] cgs
Temperature8,500 ± 300[7] K
Age(as white dwarf)[7]
1.44 Gyr
Other designations
GJ 440[8], HIP 57367[9], BPM 7108, Ci 20 658[10], EGGR 82, L 145-141, LAWD 37, LHS 43[11], LP 145-141, LPM 396, LTT 4364, NLTT 28447[12], PLX 2716[13], PM 11429-6434, WD 1142-645, TYC 8981-4417-1[14][15], GSC 08981-04418, 2MASS J11454297-6450297
Database references
SIMBADdata
Gliese 440 is located in the constellation Musca.
Gliese 440 is located in the constellation Musca.
Gliese 440
Location of Gliese 440 in the constellation Musca

Gliese 440, also known as LP 145-141 or LAWD 37,[4] is an isolated white dwarf located 15.1 light-years (4.6 parsecs) from the Solar System in the constellation Musca.[16] It is the fourth closest known white dwarf to the Sun, after Sirius B, Procyon B, and van Maanen's star.[17]

  1. ^ Cite error: The named reference heic2301a was invoked but never defined (see the help page).
  2. ^ "Constellation boundaries". Centre de Données astronomiques de Strasbourg. Archived from the original on 2019-07-17. Retrieved 2007-07-16.
  3. ^ a b c d Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  4. ^ a b c d Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference wfpc2 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference mcgill was invoked but never defined (see the help page).
  7. ^ a b c d Cite error: The named reference brl was invoked but never defined (see the help page).
  8. ^ Gliese, W.; Jahreiß, H. (1991). "Gl 440". Preliminary Version of the Third Catalogue of Nearby Stars. Archived from the original on 2016-03-04. Retrieved 2015-09-21.
  9. ^ Perryman; et al. (1997). "HIP 57367". The Hipparcos and Tycho Catalogues. Archived from the original on 2016-03-04. Retrieved 2015-09-21.
  10. ^ Cite error: The named reference Porter1930 was invoked but never defined (see the help page).
  11. ^ Luyten, Willem Jacob (1979). "LHS 30". LHS Catalogue, 2nd Edition. Archived from the original on 2016-03-04. Retrieved 2015-10-15.
  12. ^ Luyten, Willem Jacob (1979). "NLTT 28447". NLTT Catalogue. Archived from the original on 2016-03-04. Retrieved 2015-10-15.
  13. ^ Van Altena W. F.; Lee J. T.; Hoffleit E. D. (1995). "GCTP 2716". The General Catalogue of Trigonometric Stellar Parallaxes (Fourth ed.). Archived from the original on 2016-03-04. Retrieved 2015-09-21.
  14. ^ Perryman; et al. (1997). "HIP 57367". The Hipparcos and Tycho Catalogues. Archived from the original on 2016-03-04. Retrieved 2015-09-21.
  15. ^ Hog; et al. (2000). "TYC 8981-4417-1". The Tycho-2 Catalogue. Archived from the original on 2016-03-04. Retrieved 2015-10-15.
  16. ^ Cite error: The named reference Henry2002 was invoked but never defined (see the help page).
  17. ^ Table 1, Sion Edward M (2009). "The white dwarfs within 20 parsecs of the sun: kinematics and statistics". The Astronomical Journal. 138 (6): 1681–1689. arXiv:0910.1288. Bibcode:2009AJ....138.1681S. doi:10.1088/0004-6256/138/6/1681. S2CID 119284418.