Q81939172

low-mass star in the constellation Cancer

Thing low_mass_star Q81939172

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Q81939172

Summary

Q81939172 is a low-mass star^[1].

Key Facts

Q81939172's instance of is recorded as low-mass star^[2].
Q81939172's constellation is recorded as Cancer^[3].
Q81939172's spectral class is recorded as M7V^[4].
Q81939172's catalog code is recorded as 2MASS J08394449+2115192^[5].
Q81939172's catalog code is recorded as SDSS J083944.46+211519.0^[6].
Q81939172's catalog code is recorded as UGCS J083944.45+211519.0^[7].
Q81939172's catalog code is recorded as SDSS J083944.47+211519.0^[8].
Q81939172's catalog code is recorded as Gaia DR2 664747314063255936^[9].
Q81939172's redshift is recorded as {'unit': '1', 'amount': '-0.00004'}^[10].
Q81939172's apparent magnitude is recorded as {'unit': '1', 'amount': '+25.319'}^[11].
Q81939172's apparent magnitude is recorded as {'unit': '1', 'amount': '+22.221'}^[12].
Q81939172's apparent magnitude is recorded as {'unit': '1', 'amount': '+20.884'}^[13].
Q81939172's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.988'}^[14].
Q81939172's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.871'}^[15].
Q81939172's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.239'}^[16].
Q81939172's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.697'}^[17].
Q81939172's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.373'}^[18].
Q81939172's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.8107'}^[19].
Q81939172's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+4.4200'}^[20].
Q81939172's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+2'}^[21].
Q81939172's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+212.3'}^[22].
Q81939172's SIMBAD ID is recorded as 2MASS J08394449+2115192^[23].
Q81939172's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+129.93530253098410'}^[24].
Q81939172's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+21.25532230179770'}^[25].
Q81939172's epoch is recorded as J2000.0^[26].

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Quick Facts

Instance of low-mass star

Properties

Apparent magnitude unit: 1, amount: +25.319, unit: 1, amount: +22.221, unit: 1, amount: +20.884, unit: 1, amount: +18.988, unit: 1, amount: +17.871, unit: 1, amount: +16.239, unit: 1, amount: +15.697, unit: 1, amount: +15.373, unit: 1, amount: +19.8107

Catalog code 2MASS J08394449+2115192, SDSS J083944.46+211519.0, UGCS J083944.45+211519.0, SDSS J083944.47+211519.0, Gaia DR2 664747314063255936

Constellation Cancer

Declination unit: www.wikidata.org, amount: +21.25532230179770

Declination component of proper motion unit: www.wikidata.org, amount: -20.514

Distance from earth unit: www.wikidata.org, amount: +212.3

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +4.4200

Radial velocity unit: www.wikidata.org, amount: +2

Redshift unit: 1, amount: -0.00004

Right ascension unit: www.wikidata.org, amount: +129.93530253098410

Right ascension component of proper motion unit: www.wikidata.org, amount: -27.711

Spectral class M7V

External References (2)

Gaia id 664747314063255936

Simbad id 2MASS J08394449+2115192

References

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

Direct Wikidata claims

[2] ↑ Q81939172 — instance of (P31): low-mass star. SIMBAD. wikidata.org.
[3] ↑ Q81939172 — constellation (P59): Cancer. wikidata.org.
[4] ↑ Q81939172 — spectral class (P215): M7V. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[5] ↑ Q81939172 — catalog code (P528): 2MASS J08394449+2115192. SIMBAD. wikidata.org.
[6] ↑ Q81939172 — catalog code (P528): SDSS J083944.46+211519.0. SIMBAD. wikidata.org.
[7] ↑ Q81939172 — catalog code (P528): UGCS J083944.45+211519.0. SIMBAD. wikidata.org.
[8] ↑ Q81939172 — catalog code (P528): SDSS J083944.47+211519.0. SIMBAD. wikidata.org.
[9] ↑ Q81939172 — catalog code (P528): Gaia DR2 664747314063255936. SIMBAD. wikidata.org.
[10] ↑ Q81939172 — redshift (P1090): {'unit': '1', 'amount': '-0.00004'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[11] ↑ Q81939172 — apparent magnitude (P1215): {'unit': '1', 'amount': '+25.319'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[12] ↑ Q81939172 — apparent magnitude (P1215): {'unit': '1', 'amount': '+22.221'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[13] ↑ Q81939172 — apparent magnitude (P1215): {'unit': '1', 'amount': '+20.884'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[14] ↑ Q81939172 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.988'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[15] ↑ Q81939172 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.871'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[16] ↑ Q81939172 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.239'}. UKIRT Infrared Deep Sky Survey (UKIDSS) Release 9. wikidata.org.
[17] ↑ Q81939172 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.697'}. UKIRT Infrared Deep Sky Survey (UKIDSS) Release 9. wikidata.org.
[18] ↑ Q81939172 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.373'}. UKIRT Infrared Deep Sky Survey (UKIDSS) Release 9. wikidata.org.
[19] ↑ Q81939172 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.8107'}. Gaia Data Release 2. wikidata.org.
[20] ↑ Q81939172 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+4.4200'}. Gaia Data Release 2. wikidata.org.
[21] ↑ Q81939172 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+2'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[22] ↑ Q81939172 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+212.3'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[23] ↑ Q81939172 — SIMBAD ID (P3083): 2MASS J08394449+2115192. wikidata.org.
[24] ↑ Q81939172 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+129.93530253098410'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q81939172 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+21.25532230179770'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q81939172 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q81939172 is an instance of low-mass star (Q12795622) [P31, primary]. 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). Q81939172. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81939172

MLA “Q81939172.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81939172.

BibTeX

@misc{4ortxyz_q81939172_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81939172}}, year = {2026}, url = {https://4ort.xyz/entity/q81939172}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81939172 — https://4ort.xyz/entity/q81939172 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81939172 · Last refreshed: May 7, 2026