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HD 81040

star in the constellation Leo
Place Star Q83836

Facts

24 properties

Identity

Instance of
star, high proper-motion star, near-infrared source, G-type main-sequence star, solar-type star[1][2][3][4]
More facts +23
Absolute magnitude
+5.12, +5.18[32][33]
Age estimated by a dating method
+4.18
Apparent magnitude
7.72 (6.16–8.51, n=8)[24][25][26][27][28][29][30][31]
Catalog code
HD 81040, 2MASS J09234707+2021520, GSC 01408-00143, HIP 46076, SAO 80800, BD+20 2314, ASCC 773241, FK5 4836, GC 12951, HIC 46076, LSPM J0923+2021, N30 2231, PPM 99541, TYC 1408-143-1, uvby98 100081040, YZ 20 3742, Gaia DR2 637329067477530368, Gaia DR1 637329063182576000, Gaia DR3 637329067477530368, TIC 414965996, AG+20 1091, GEN# +1.00081040, SKY# 18136, WISEA J092346.97+202152.4[10][11][12][13][14][15][16][17][18][19][20][21][22][23]
Child astronomical body
HD 81040 b[9]
Constellation
Leo[5]
Declination
+20.36445413959
Declination component of proper motion
37 (29–37, n=10)
Diameter
+1280000[61]
Distance from Earth
32.6 (32.6–34.5, n=3)[62][63][64]
Effective temperature
5.7k (5.6k–6.1k, n=17)
Epoch
J2000.0
Luminosity
+0.8393878[34]
Mass
+0.87, +0.96[35][36]
Metallicity
-0.07 (-0.52–7.38, n=12)[49][50][51][52][53][54][55][56][57][58][59][60]
Parallax
29.1 (29–30.7, n=5)[39][40][41][42][43]
Radial velocity
49.3 (48.9–49.4, n=5)[44][45][46][47][48]
Radius
+0.9077739, +0.86[37][38]
Right ascension
+140.94619738373
Right ascension component of proper motion
-149 (-153–-147, n=10)
Spectral class
G0V, G0, G2/G3[6][7][8]
Stellar rotational velocity
3.7 (2–5.3, n=4)[65][66][67]
Surface gravity
30k (14k–51k, n=9)
🏷️ Also known as
en AGKR 8458 en ASCC 773241 en GC 12951 en HD 81040 en HIC 46076 en HIP 46076 en PPM 99541 en SAO 80800 en TIC 414965996 en TYC 1408-143-1 fa اچ‌دی 81040 fa اچ‌دی ۸۱۰۴۰ fa اچ دی 81040 fa اچ دی ۸۱۰۴۰
🔖 Identifiers · 4
Freebase ID
/m/02rqn8x
Gaia ID
637329067477530368
NASA Exoplanet Archive ID
HD 81040
SIMBAD ID
HD 81040

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
Instance of 3
star, G-type main-sequence star, solar-type star
Child astronomical body 1
HD 81040 b
Constellation 1
Leo
Epoch 1
J2000.0
← FactGrid item ID 1
Khujand
← Parent astronomical body 1
HD 81040 b
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References

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

Direct Wikidata claims

  1. [1] ↑ . SIMBAD. wikidata.org.
  2. [2] ↑ . SIMBAD. wikidata.org.
  3. [3] ↑ . SIMBAD. wikidata.org.
  4. [4] ↑ . SIMBAD. wikidata.org.
  5. [5] ↑ . wikidata.org.
  6. [6] ↑ . SIMBAD. wikidata.org.
  7. [7] ↑ . VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925). wikidata.org.
  8. [8] ↑ . Extrasolar Planets Encyclopaedia. wikidata.org.
  9. [9] ↑ . SIMBAD. wikidata.org.
  10. [10] ↑ . SIMBAD. wikidata.org.
  11. [11] ↑ . SIMBAD. wikidata.org.
  12. [12] ↑ . SIMBAD. wikidata.org.
  13. [13] ↑ . SIMBAD. wikidata.org.
  14. [14] ↑ . SIMBAD. wikidata.org.
  15. [15] ↑ . SIMBAD. wikidata.org.
  16. [16] ↑ . SIMBAD. wikidata.org.
  17. [17] ↑ . SIMBAD. wikidata.org.
  18. [18] ↑ . SIMBAD. wikidata.org.
  19. [19] ↑ . SIMBAD. wikidata.org.
  20. [20] ↑ . SIMBAD. wikidata.org.
  21. [21] ↑ . SIMBAD. wikidata.org.
  22. [22] ↑ . SIMBAD. wikidata.org.
  23. [23] ↑ . SIMBAD. wikidata.org.
  24. [24] ↑ . UBV photometry of stars whose positions are accurately known. V. wikidata.org.
  25. [25] ↑ . UBV photometry of stars whose positions are accurately known. V. wikidata.org.
  26. [26] ↑ . The USNO-B Catalog. wikidata.org.
  27. [27] ↑ . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  28. [28] ↑ . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  29. [29] ↑ . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  30. [30] ↑ . Gaia Early Data Release 3. wikidata.org.
  31. [31] ↑ . Extrasolar Planets Encyclopaedia. wikidata.org.
  32. [32] ↑ . Retrieved . wikidata.org.
  33. [33] ↑ . wikidata.org.
  34. [34] ↑ . Gaia Data Release 2. wikidata.org.
  35. [35] ↑ . Retrieved . wikidata.org.
  36. [36] ↑ . A massive planet to the young disc star HD 81040. wikidata.org.
  37. [37] ↑ . Gaia Data Release 2. wikidata.org.
  38. [38] ↑ . A massive planet to the young disc star HD 81040. wikidata.org.
  39. [39] ↑ . Gaia Data Release 2. wikidata.org.
  40. [40] ↑ . The HIPPARCOS Catalogue. wikidata.org.
  41. [41] ↑ . Validation of the new Hipparcos reduction. wikidata.org.
  42. [42] ↑ . Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties. wikidata.org.
  43. [43] ↑ . Gaia Early Data Release 3. wikidata.org.
  44. [44] ↑ . Gaia Data Release 2. wikidata.org.
  45. [45] ↑ . Abundances of refractory elements for G-type stars with extrasolar planets. wikidata.org.
  46. [46] ↑ . Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system. wikidata.org.
  47. [47] ↑ . The Geneva-Copenhagen survey of the Solar neighbourhood. Ages, metallicities, and kinematic properties of ∼14 000 F and G dwarfs. wikidata.org.
  48. [48] ↑ . Gaia Data Release 2. The catalogue of radial velocity standard stars. wikidata.org.
  49. [49] ↑ . Abundances of refractory elements for G-type stars with extrasolar planets. wikidata.org.
  50. [50] ↑ . Stellar parameters and metallicities of stars hosting Jovian and Neptunian mass planets: a possible dependence of planetary mass on metallicity. wikidata.org.
  51. [51] ↑ . SWEET-Cat: A catalogue of parameters for Stars With ExoplanETs. wikidata.org.
  52. [52] ↑ . Parent Stars of Extrasolar Planets. X. Lithium Abundances and vsini Revisited. wikidata.org.
  53. [53] ↑ . Lithium abundance patterns of late-F stars: an in-depth analysis of the lithium desert. wikidata.org.
  54. [54] ↑ . Abundances in the Local Region II: F, G, and K Dwarfs and Subgiants. wikidata.org.
  55. [55] ↑ . SWEET-Cat updated. New homogenous spectroscopic parameters. wikidata.org.
  56. [56] ↑ . SWEET-Cat updated. New homogenous spectroscopic parameters. wikidata.org.
  57. [57] ↑ . Abundances in the Local Region II: F, G, and K Dwarfs and Subgiants. wikidata.org.
  58. [58] ↑ . SWEET-Cat: A view on the planetary mass-radius relation. wikidata.org.
  59. [59] ↑ . Exploring the brown dwarf desert with precision radial velocities and Gaia DR3 astrometric orbits. wikidata.org.
  60. [60] ↑ . Assessment of [Fe/H] determinations for FGK stars in spectroscopic surveys. wikidata.org.
  61. [61] ↑ . Age consistency between exoplanet hosts and field stars. wikidata.org.
  62. [62] ↑ . Gaia Data Release 2. wikidata.org.
  63. [63] ↑ . Gaia Early Data Release 3. wikidata.org.
  64. [64] ↑ . A massive planet to the young disc star HD 81040. wikidata.org.
  65. [65] ↑ . Abundances in the Local Region II: F, G, and K Dwarfs and Subgiants. wikidata.org.
  66. [66] ↑ . VizieR Online Data Catalog: Catalog of Stellar Rotational Velocities (Glebocki+ 2005). wikidata.org.
  67. [67] ↑ . VizieR Online Data Catalog: Catalog of Stellar Rotational Velocities (Glebocki+ 2005). wikidata.org.

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Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). HD 81040. Retrieved November 11, 2026, from https://4ort.xyz/entity/hd-81040
MLA “HD 81040.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Nov. 2026, https://4ort.xyz/entity/hd-81040.
BibTeX @misc{4ortxyz_hd-81040_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{HD 81040}}, year = {2026}, url = {https://4ort.xyz/entity/hd-81040}, note = {Accessed: 2026-11-11}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): HD 81040 — https://4ort.xyz/entity/hd-81040 (retrieved 2026-11-11)

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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. 9d ago · Porrima · 2026-11-03 view diff on Wikidata ↗
    Metallicity → -0.04, -0.21, -0.01 +9
    Distance from Earth → 34.4683 parsec, 34.407 parsec, 32.56 parsec
    Right ascension component of proper motion → -148.3 milliarcsecond per year, -151.258 milliarcsecond per year, -152.39 milliarcsecond per year +6
    Surface gravity → 51,000 centimetre per square second, 13,500 centimetre per square second, 23,000 centimetre per square second +6
    + 19 other properties edited (see Wikidata diff for full list)
    "Added [hu] description: a Henry Draper katalógus csillaga, batch #293786"
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