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** BVD 21

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** BVD 21

Summary

** BVD 21 is a double star[1].

Key Facts

  • ** BVD 21's instance of is recorded as double star[2].
  • ** BVD 21's instance of is recorded as high proper-motion star[3].
  • ** BVD 21's constellation is recorded as Aries[4].
  • ** BVD 21's spectral class is recorded as K7V[5].
  • ** BVD 21's catalog code is recorded as WDS J01568+2303AB[6].
  • ** BVD 21's catalog code is recorded as StKM 1-210[7].
  • ** BVD 21's catalog code is recorded as TYC 1757-1489-1[8].
  • ** BVD 21's catalog code is recorded as 2MASS J01565016+2302200[9].
  • ** BVD 21's catalog code is recorded as GSC 01757-01489[10].
  • ** BVD 21's catalog code is recorded as WISEA J015650.07+230219.9[11].
  • ** BVD 21's catalog code is recorded as Gaia DR1 98692335507906432[12].
  • ** BVD 21's catalog code is recorded as Gaia DR2 98692339803443328[13].
  • ** BVD 21's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.87'}[14].
  • ** BVD 21's apparent magnitude is recorded as {'unit': '1', 'amount': '+11.85'}[15].
  • ** BVD 21's apparent magnitude is recorded as {'unit': '1', 'amount': '+8.456'}[16].
  • ** BVD 21's apparent magnitude is recorded as {'unit': '1', 'amount': '+7.823'}[17].
  • ** BVD 21's apparent magnitude is recorded as {'unit': '1', 'amount': '+7.618'}[18].
  • ** BVD 21's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.4828'}[19].
  • ** BVD 21's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+29.4157'}[20].
  • ** BVD 21's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+2.72'}[21].
  • ** BVD 21's metallicity is recorded as {'unit': '1', 'amount': '-0.02'}[22].
  • ** BVD 21's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+33.9955'}[23].
  • ** BVD 21's SIMBAD ID is recorded as StKM 1-210[24].
  • ** BVD 21's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+29.19708'}[25].
  • ** BVD 21's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+29.20891252352600'}[26].

Body

Designation and Status

Recorded instance of include double star[2] and high proper-motion star[3].

History and Context

Catalog codes include WDS J01568+2303AB[6], StKM 1-210[7], TYC 1757-1489-1[8], 2MASS J01565016+2302200[9], GSC 01757-01489[10], and WISEA J015650.07+230219.9[11].

References

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

Direct Wikidata claims

  1. [2] ↑ . SIMBAD. wikidata.org.
  2. [3] ↑ . SIMBAD. wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . Astrophysical and Dynamical study of New Wide Common Proper Motion Binaries. wikidata.org.
  5. [6] ↑ . SIMBAD. wikidata.org.
  6. [7] ↑ . SIMBAD. wikidata.org.
  7. [8] ↑ . SIMBAD. wikidata.org.
  8. [9] ↑ . SIMBAD. wikidata.org.
  9. [10] ↑ . SIMBAD. wikidata.org.
  10. [11] ↑ . SIMBAD. wikidata.org.
  11. [12] ↑ . SIMBAD. wikidata.org.
  12. [13] ↑ . SIMBAD. wikidata.org.
  13. [14] ↑ . The Tycho-2 catalogue of the 2.5 million brightest stars. wikidata.org.
  14. [15] ↑ . The Tycho-2 catalogue of the 2.5 million brightest stars. wikidata.org.
  15. [16] ↑ . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  16. [17] ↑ . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  17. [18] ↑ . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  18. [19] ↑ . Gaia Data Release 2. wikidata.org.
  19. [20] ↑ . Gaia Data Release 2. wikidata.org.
  20. [21] ↑ . Gaia Data Release 2. wikidata.org.
  21. [22] ↑ . SIMBAD. wikidata.org.
  22. [23] ↑ . Gaia Data Release 2. wikidata.org.
  23. [24] ↑ . wikidata.org.
  24. [25] ↑ . The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog. wikidata.org.
  25. [26] ↑ . Gaia Data Release 2. wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

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). ** BVD 21. Retrieved May 3, 2026, from https://4ort.xyz/entity/-bvd-21
MLA “** BVD 21.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-bvd-21.
BibTeX @misc{4ortxyz_-bvd-21_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{** BVD 21}}, year = {2026}, url = {https://4ort.xyz/entity/-bvd-21}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): ** BVD 21 — https://4ort.xyz/entity/-bvd-21 (retrieved 2026-05-03)

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