Q81761140

low-mass star in the constellation Cetus

Thing low_mass_star Q81761140

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Q81761140

Summary

Q81761140 is a low-mass star^[1].

Key Facts

Q81761140's instance of is recorded as low-mass star^[2].
Q81761140's constellation is recorded as Cetus^[3].
Q81761140's spectral class is recorded as M7V^[4].
Q81761140's catalog code is recorded as 2MASS J02103970+0050594^[5].
Q81761140's catalog code is recorded as SDSS J021039.71+005059.3^[6].
Q81761140's catalog code is recorded as SDSS J021039.71+005059.2^[7].
Q81761140's catalog code is recorded as SDSS J021039.70+005059.7^[8].
Q81761140's catalog code is recorded as Gaia DR2 2507308453212008064^[9].
Q81761140's apparent magnitude is recorded as {'unit': '1', 'amount': '+23.271'}^[10].
Q81761140's apparent magnitude is recorded as {'unit': '1', 'amount': '+21.191'}^[11].
Q81761140's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.605'}^[12].
Q81761140's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.511'}^[13].
Q81761140's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.846'}^[14].
Q81761140's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.582'}^[15].
Q81761140's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.465'}^[16].
Q81761140's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.325'}^[17].
Q81761140's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.2022'}^[18].
Q81761140's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+11.2002'}^[19].
Q81761140's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+14'}^[20].
Q81761140's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+89.2841'}^[21].
Q81761140's SIMBAD ID is recorded as 2MASS J02103970+0050594^[22].
Q81761140's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+32.66542329851950'}^[23].
Q81761140's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+0.84988008128400'}^[24].
Q81761140's epoch is recorded as J2000.0^[25].
Q81761140's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-98.404'}^[26].

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Quick Facts

Instance of low-mass star

Properties

Apparent magnitude unit: 1, amount: +23.271, unit: 1, amount: +21.191, unit: 1, amount: +19.605, unit: 1, amount: +14.511, unit: 1, amount: +13.846, unit: 1, amount: +13.582, unit: 1, amount: +17.465, unit: 1, amount: +16.325, unit: 1, amount: +18.2022

Catalog code 2MASS J02103970+0050594, SDSS J021039.71+005059.3, SDSS J021039.71+005059.2, SDSS J021039.70+005059.7, Gaia DR2 2507308453212008064

Constellation Cetus

Declination unit: www.wikidata.org, amount: +0.84988008128400

Declination component of proper motion unit: www.wikidata.org, amount: -98.404

Distance from earth unit: www.wikidata.org, amount: +89.2841

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +11.2002

Radial velocity unit: www.wikidata.org, amount: +14

Right ascension unit: www.wikidata.org, amount: +32.66542329851950

Right ascension component of proper motion unit: www.wikidata.org, amount: +73.374

Spectral class M7V

External References (2)

Gaia id 2507308453212008064

Simbad id 2MASS J02103970+0050594

References

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

Direct Wikidata claims

[2] ↑ Q81761140 — instance of (P31): low-mass star. SIMBAD. wikidata.org.
[3] ↑ Q81761140 — constellation (P59): Cetus. wikidata.org.
[4] ↑ Q81761140 — spectral class (P215): M7V. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[5] ↑ Q81761140 — catalog code (P528): 2MASS J02103970+0050594. SIMBAD. wikidata.org.
[6] ↑ Q81761140 — catalog code (P528): SDSS J021039.71+005059.3. SIMBAD. wikidata.org.
[7] ↑ Q81761140 — catalog code (P528): SDSS J021039.71+005059.2. SIMBAD. wikidata.org.
[8] ↑ Q81761140 — catalog code (P528): SDSS J021039.70+005059.7. SIMBAD. wikidata.org.
[9] ↑ Q81761140 — catalog code (P528): Gaia DR2 2507308453212008064. SIMBAD. wikidata.org.
[10] ↑ Q81761140 — apparent magnitude (P1215): {'unit': '1', 'amount': '+23.271'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[11] ↑ Q81761140 — apparent magnitude (P1215): {'unit': '1', 'amount': '+21.191'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[12] ↑ Q81761140 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.605'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[13] ↑ Q81761140 — apparent magnitude (P1215): {'unit': '1', 'amount': '+14.511'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[14] ↑ Q81761140 — apparent magnitude (P1215): {'unit': '1', 'amount': '+13.846'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[15] ↑ Q81761140 — apparent magnitude (P1215): {'unit': '1', 'amount': '+13.582'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[16] ↑ Q81761140 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.465'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[17] ↑ Q81761140 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.325'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[18] ↑ Q81761140 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.2022'}. Gaia Data Release 2. wikidata.org.
[19] ↑ Q81761140 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+11.2002'}. Gaia Data Release 2. wikidata.org.
[20] ↑ Q81761140 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+14'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[21] ↑ Q81761140 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+89.2841'}. Gaia Data Release 2. wikidata.org.
[22] ↑ Q81761140 — SIMBAD ID (P3083): 2MASS J02103970+0050594. wikidata.org.
[23] ↑ Q81761140 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+32.66542329851950'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q81761140 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+0.84988008128400'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q81761140 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.
[26] ↑ Q81761140 — declination component of proper motion (P10751): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-98.404'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q81761140 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). Q81761140. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81761140

MLA “Q81761140.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81761140.

BibTeX

@misc{4ortxyz_q81761140_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81761140}}, year = {2026}, url = {https://4ort.xyz/entity/q81761140}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81761140 — https://4ort.xyz/entity/q81761140 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81761140 · Last refreshed: May 7, 2026