BT Ursae Majoris

Place eruptive_variable_star Q78274211
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BT Ursae Majoris

Summary

BT Ursae Majoris is an eruptive variable star[1].

Key Facts

  • BT Ursae Majoris's instance of is recorded as eruptive variable star[2].
  • BT Ursae Majoris's instance of is recorded as near-infrared source[3].
  • BT Ursae Majoris's instance of is recorded as astrophysical X-ray source[4].
  • BT Ursae Majoris's constellation is recorded as Ursa Major[5].
  • BT Ursae Majoris's spectral class is recorded as M4.05[6].
  • BT Ursae Majoris's catalog code is recorded as CSV 6842[7].
  • BT Ursae Majoris's catalog code is recorded as GSC 03015-00686[8].
  • BT Ursae Majoris's catalog code is recorded as [GKL99] 241[9].
  • BT Ursae Majoris's catalog code is recorded as 2MASS J11305369+4414361[10].
  • BT Ursae Majoris's catalog code is recorded as 1RXS J113054.0+441436[11].
  • BT Ursae Majoris's catalog code is recorded as UCAC4 672-054926[12].
  • BT Ursae Majoris's catalog code is recorded as PM J11308+4414[13].
  • BT Ursae Majoris's catalog code is recorded as Gaia DR2 772320886023525504[14].
  • BT Ursae Majoris's catalog code is recorded as BT UMa[15].
  • BT Ursae Majoris's catalog code is recorded as TIC 56939912[16].
  • BT Ursae Majoris's catalog code is recorded as Gaia DR3 772320886023525504[17].
  • BT Ursae Majoris's type of variable star is recorded as flare star[18].
  • BT Ursae Majoris's type of variable star is recorded as rotating variable star[19].
  • BT Ursae Majoris's apparent magnitude is recorded as {'unit': '1', 'amount': '+9.619'}[20].
  • BT Ursae Majoris's apparent magnitude is recorded as {'unit': '1', 'amount': '+9.070'}[21].
  • BT Ursae Majoris's apparent magnitude is recorded as {'unit': '1', 'amount': '+8.797'}[22].
  • BT Ursae Majoris's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.721'}[23].
  • BT Ursae Majoris's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.655'}[24].
  • BT Ursae Majoris's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.575933'}[25].
  • BT Ursae Majoris's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+41.3919'}[26].

Body

Designation and Status

Recorded instance of include eruptive variable star[2], near-infrared source[3], and astrophysical X-ray source[4].

History and Context

Catalog codes include CSV 6842[7], GSC 03015-00686[8], [GKL99] 241[9], 2MASS J11305369+4414361[10], 1RXS J113054.0+441436[11], and UCAC4 672-054926[12].

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] . SIMBAD. wikidata.org.
  4. [5] . wikidata.org.
  5. [6] . A near-infrared spectroscopic survey of 886 nearby M dwarfs. 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] . SIMBAD. wikidata.org.
  14. [15] . SIMBAD. wikidata.org.
  15. [16] . SIMBAD. wikidata.org.
  16. [17] . SIMBAD. wikidata.org.
  17. [18] . Q56001295. wikidata.org.
  18. [19] . A photometric variability survey of field K and M dwarf stars with HATNet. wikidata.org.
  19. [20] . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  20. [21] . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  21. [22] . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  22. [23] . A photometric variability survey of field K and M dwarf stars with HATNet. wikidata.org.
  23. [24] . Fourth USNO CCD Astrograph Catalog. wikidata.org.
  24. [25] . Gaia Early Data Release 3. wikidata.org.
  25. [26] . Gaia Early Data Release 3. 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). BT Ursae Majoris. Retrieved May 3, 2026, from https://4ort.xyz/entity/bt-ursae-majoris
MLA “BT Ursae Majoris.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/bt-ursae-majoris.
BibTeX @misc{4ortxyz_bt-ursae-majoris_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{BT Ursae Majoris}}, year = {2026}, url = {https://4ort.xyz/entity/bt-ursae-majoris}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): BT Ursae Majoris — https://4ort.xyz/entity/bt-ursae-majoris (retrieved 2026-05-03)

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