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T Orionis

variable star in the constellation Orion
Place variable_star Q6137700

Facts

14 properties
Instance of
variable star, young stellar object, Herbig Ae/Be star[2][3]
Apparent magnitude
6.22 (6.22–12.7, n=9)[23][24][25]
Catalog code
2MASS J05355043-0528349, GCRV 3447, JP11 5770, JP11 5771, JP11 5769, UBV M 51748, UCAC2 29958680, uvby98 900010884 V, BD-05 1329, HBC 154, TYC 4774-866-1, [DRS2009] 17, [MGM2012] 1600, WEB 5163, Gaia DR2 3017347673735214592, T Ori[6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]
Constellation
Orion[4]
Declination
-5.4763676043719
Declination component of proper motion
0.594
Distance from Earth
407.8137
Epoch
J2000.0
Parallax
2.4521
Radial velocity
51.5
Right ascension
83.9602015583414
Right ascension component of proper motion
2.136
Spectral class
A3IVeb[5]
Type of variable star
UX Orionis variable[22]
🏷️ Also known as
en T Orionis fi T Orionis -tähti fi T Orionis-tähti ru T Ориона
🔖 Identifiers · 3
Gaia ID
3017347673735214592
Google Knowledge Graph ID
/g/120z_nkt
SIMBAD ID
V* T Ori

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🔗 Connections
Instance of 3
variable star, Herbig Ae/Be star, young stellar object
Constellation 1
Orion
Epoch 1
J2000.0
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Summary

T Orionis is a variable star[1].

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] ↑ . VizieR. wikidata.org.
  4. [5] ↑ . The incidence of {lambda} Bootis stars via an extension of the MK spectral classification system to very young A-type stars. wikidata.org.
  5. [6] ↑ . SIMBAD. Retrieved . 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] ↑ . SIMBAD. wikidata.org.
  18. [19] ↑ . SIMBAD. wikidata.org.
  19. [20] ↑ . SIMBAD. wikidata.org.
  20. [21] ↑ . wikidata.org.
  21. [22] ↑ . International Variable Star Index. Retrieved . aavso.org. Provenance: wikidata.org.
  22. [23] ↑ . A multi-color optical survey of the Orion nebula cluster. I. The catalog. wikidata.org.
  23. [24] ↑ . A multi-color optical survey of the Orion nebula cluster. I. The catalog. wikidata.org.
  24. [25] ↑ . A multi-color optical survey of the Orion nebula cluster. I. The catalog. 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). T Orionis. Retrieved November 1, 2026, from https://4ort.xyz/entity/t-orionis
MLA “T Orionis.” 4ort.xyz Knowledge Graph, 4ort.xyz, 1 Nov. 2026, https://4ort.xyz/entity/t-orionis.
BibTeX @misc{4ortxyz_t-orionis_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{T Orionis}}, year = {2026}, url = {https://4ort.xyz/entity/t-orionis}, note = {Accessed: 2026-11-01}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): T Orionis — https://4ort.xyz/entity/t-orionis (retrieved 2026-11-01)

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