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Gliese 229 A

star in the Lepus constellation
Place red_dwarf Q88724589

Facts

22 properties
Instance of
red dwarf, flare star, rotating variable star, high proper-motion star, infrared source, near-infrared source, astrophysical X-ray source, star, double star, variable star, eruptive variable star[1][2][3][4][5][6][7][8][9][10]
Apparent magnitude
7.52 (4.17–10.8, n=12)[43][44][45][46][47][48][49][50][51][52][53]
Catalog code
Karmn J06105-218, 2MASS J06103462-2151521, PLX 1430, Ci 20 377, Ci 18 771, GCRV 3900, GSC 05945-00765, HD 42581, HIC 29295, HIP 29295, IRAS 06084-2150, JP11 1338, LFT 459, LHS 1827, LPM 230, LTT 2475, NLTT 16172, NSV 2863, PPM 249953, SAO 171334, UBV 6238, YZ 111 2116, Zkh 85, [GKL99] 155, uvby98 100042581, PLX 1430.00, 1RXS J061034.3-215154, WDS J06106-2152A, GJ 229, Gaia DR2 2940856402123426176, UCAC4 341-011114, PM J06105-2151, Gaia DR1 2940856397828565760, WEB 5749, Gaia DR3 2940856402123426176, TIC 124279525, TYC 5945-765-1, UBV M 11850[27][28][29][30][31][32][33][34][35][36][37][38][39][40]
Child astronomical body
Gliese 229 Ab, Gliese 229 Ac, Gliese 229 B[24][25][26]
Constellation
Lepus[11]
Declination
-21.86462676470167
Declination component of proper motion
-719.2 (-822–-700, n=8)
Diameter
+967000
Distance from Earth
5.76 (5.75–5.76, n=4)
Effective temperature
3.6k (3.6k–4.9k, n=31)
Epoch
J2000.0
Mass
+0.544
Metallicity
0.34 (-0.21–0.47, n=21)
Parallax
173.6 (172.6–173.8, n=6)
Radial velocity
4.89 (0–6, n=13)
Radius
+0.548
Right ascension
+92.64422889923625
Right ascension component of proper motion
-135.7 (-137.1–-100, n=8)
Spectral class
M1V, M1, M2V, M0Ve, M1V(e), M2.5V, M0.5V, M1/2V, K5, M1.0, dM0.5, dM1[12][13][14][15][16][17][18][19][20][21][22][23]
Stellar rotational velocity
2.61 (-4.62–19.1, n=6)
Surface gravity
0.05 (0.05–316k, n=14)
Type of variable star
flare star, rotating variable star[41][42]
🏷️ Also known as
en GJ 229A en Gliese 229 A en Gliese 229A en HD 42581 en HD 42581A ja グリーゼ229A
🔖 Identifiers · 5
Image (Wikimedia Commons)
Wide Field Infrared Images of Gliese 229 b.jpg ↗
ARICNS
00489
Gaia ID
2940856402123426176
NASA Exoplanet Archive ID
GJ 229
SIMBAD ID
HD 42581

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References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [1] ↑ . Catalogue of suspected variable stars. Moscow, Acad. of Sciences USSR Shternberg,1951 (1981). wikidata.org.
  2. [2] ↑ . CARMENES input catalogue of M dwarfs. wikidata.org.
  3. [3] ↑ . SIMBAD. wikidata.org.
  4. [4] ↑ . SIMBAD. wikidata.org.
  5. [5] ↑ . SIMBAD. wikidata.org.
  6. [6] ↑ . SIMBAD. wikidata.org.
  7. [7] ↑ . SIMBAD. wikidata.org.
  8. [8] ↑ . SIMBAD. wikidata.org.
  9. [9] ↑ . SIMBAD. wikidata.org.
  10. [10] ↑ . SIMBAD. wikidata.org.
  11. [11] ↑ . wikidata.org.
  12. [12] ↑ . A standard stellar spectral sequence in the red/near-infrared - Classes K5 to M9. wikidata.org.
  13. [13] ↑ . The effective temperature scale of M dwarfs. wikidata.org.
  14. [14] ↑ . The Spectroscopic Absolute Magnitudes and Parallaxes of 4179 Stars. wikidata.org.
  15. [15] ↑ . Radial velocities of proper-motion stars. II. wikidata.org.
  16. [16] ↑ . Spectral classification and photometry of high proper motion stars. wikidata.org.
  17. [17] ↑ . Spectral types of M dwarf stars. wikidata.org.
  18. [18] ↑ . Kinematics and luminosity function of dwarf populations in three areas of the Calan-ESO proper-motion catalog. wikidata.org.
  19. [19] ↑ . Michigan Catalogue of Two-dimensional Spectral Types for the HD Stars. Volume 4, Declinations -26°.0 to -12°.0.. wikidata.org.
  20. [20] ↑ . VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925). wikidata.org.
  21. [21] ↑ . HADES RV programme with HARPS-N at TNG. XII. The abundance signature of M dwarf stars with planets. wikidata.org.
  22. [22] ↑ . The CARMENES search for exoplanets around M dwarfs. Different roads to radii and masses of the target stars. wikidata.org.
  23. [23] ↑ . Radii of 88 M Subdwarfs and Updated Radius Relations for Low-metallicity M-dwarf Stars. wikidata.org.
  24. [24] ↑ . wikidata.org.
  25. [25] ↑ . wikidata.org.
  26. [26] ↑ . wikidata.org.
  27. [27] ↑ . SIMBAD. wikidata.org.
  28. [28] ↑ . SIMBAD. wikidata.org.
  29. [29] ↑ . SIMBAD. wikidata.org.
  30. [30] ↑ . SIMBAD. wikidata.org.
  31. [31] ↑ . SIMBAD. wikidata.org.
  32. [32] ↑ . SIMBAD. wikidata.org.
  33. [33] ↑ . SIMBAD. wikidata.org.
  34. [34] ↑ . SIMBAD. wikidata.org.
  35. [35] ↑ . SIMBAD. wikidata.org.
  36. [36] ↑ . SIMBAD. wikidata.org.
  37. [37] ↑ . SIMBAD. wikidata.org.
  38. [38] ↑ . SIMBAD. wikidata.org.
  39. [39] ↑ . SIMBAD. wikidata.org.
  40. [40] ↑ . SIMBAD. wikidata.org.
  41. [41] ↑ . Catalogue of suspected variable stars. Moscow, Acad. of Sciences USSR Shternberg,1951 (1981). wikidata.org.
  42. [42] ↑ . CARMENES input catalogue of M dwarfs. wikidata.org.
  43. [43] ↑ . UBV(RI)CJHK observations of Hipparcos-selected nearby stars. wikidata.org.
  44. [44] ↑ . UBV(RI)CJHK observations of Hipparcos-selected nearby stars. wikidata.org.
  45. [45] ↑ . UBV(RI)CJHK observations of Hipparcos-selected nearby stars. wikidata.org.
  46. [46] ↑ . UBV(RI)CJHK observations of Hipparcos-selected nearby stars. wikidata.org.
  47. [47] ↑ . Gaia Early Data Release 3. wikidata.org.
  48. [48] ↑ . UBV(RI)CJHK observations of Hipparcos-selected nearby stars. wikidata.org.
  49. [49] ↑ . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  50. [50] ↑ . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  51. [51] ↑ . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  52. [52] ↑ . Fourth USNO CCD Astrograph Catalog. wikidata.org.
  53. [53] ↑ . Fourth USNO CCD Astrograph Catalog. wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). Gliese 229 A. Retrieved October 31, 2026, from https://4ort.xyz/entity/gliese-229-a
MLA “Gliese 229 A.” 4ort.xyz Knowledge Graph, 4ort.xyz, 31 Oct. 2026, https://4ort.xyz/entity/gliese-229-a.
BibTeX @misc{4ortxyz_gliese-229-a_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Gliese 229 A}}, year = {2026}, url = {https://4ort.xyz/entity/gliese-229-a}, note = {Accessed: 2026-10-31}}
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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 19w ago · 惑星矮星 · 2026-06-19 view diff on Wikidata ↗
    Right ascension → {'unit': 'Q28390', 'amount': '+92.64422889923625'}
    Parallax → {'unit': 'Q21500224', 'amount': '+173.6955'}, {'unit': 'Q21500224', 'amount': '+173.81'}, {'unit': 'Q21500224', 'amount': '+172.660'} +3
    Imported from → —
    Radius → {'unit': 'Q48440', 'amount': '+0.548'}
    + 25 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update:2||1|1 */ SIMBAD ID: HD 42581"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.