Q81756780

low-mass star in the constellation Cetus

Thing low_mass_star Q81756780

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Q81756780

Summary

Q81756780 is a low-mass star^[1].

Key Facts

Q81756780's instance of is recorded as low-mass star^[2].
Q81756780's constellation is recorded as Cetus^[3].
Q81756780's spectral class is recorded as M4V^[4].
Q81756780's catalog code is recorded as 2MASS J02101775+0006358^[5].
Q81756780's catalog code is recorded as SDSS J021017.76+000636.0^[6].
Q81756780's catalog code is recorded as SDSS J021017.76+000636.1^[7].
Q81756780's catalog code is recorded as Gaia DR2 2507058378741164928^[8].
Q81756780's apparent magnitude is recorded as {'unit': '1', 'amount': '+22.425'}^[9].
Q81756780's apparent magnitude is recorded as {'unit': '1', 'amount': '+20.960'}^[10].
Q81756780's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.555'}^[11].
Q81756780's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.655'}^[12].
Q81756780's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.694'}^[13].
Q81756780's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.312'}^[14].
Q81756780's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.440'}^[15].
Q81756780's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.56'}^[16].
Q81756780's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.0520'}^[17].
Q81756780's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+0.9382'}^[18].
Q81756780's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+82'}^[19].
Q81756780's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+546.4'}^[20].
Q81756780's SIMBAD ID is recorded as 2MASS J02101775+0006358^[21].
Q81756780's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+32.57399850957880'}^[22].
Q81756780's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+0.11002681013510'}^[23].
Q81756780's epoch is recorded as J2000.0^[24].
Q81756780's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-7.491'}^[25].
Q81756780's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+19.926'}^[26].

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Quick Facts

Instance of low-mass star

Properties

Apparent magnitude unit: 1, amount: +22.425, unit: 1, amount: +20.960, unit: 1, amount: +19.555, unit: 1, amount: +17.655, unit: 1, amount: +15.694, unit: 1, amount: +18.312, unit: 1, amount: +16.440, unit: 1, amount: +15.56, unit: 1, amount: +19.0520

Catalog code 2MASS J02101775+0006358, SDSS J021017.76+000636.0, SDSS J021017.76+000636.1, Gaia DR2 2507058378741164928

Constellation Cetus

Declination unit: www.wikidata.org, amount: +0.11002681013510

Declination component of proper motion unit: www.wikidata.org, amount: -7.491

Distance from earth unit: www.wikidata.org, amount: +546.4

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +0.9382

Radial velocity unit: www.wikidata.org, amount: +82

Right ascension unit: www.wikidata.org, amount: +32.57399850957880

Right ascension component of proper motion unit: www.wikidata.org, amount: +19.926

Spectral class M4V

External References (2)

Gaia id 2507058378741164928

Simbad id 2MASS J02101775+0006358

References

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

Direct Wikidata claims

[2] ↑ Q81756780 — instance of (P31): low-mass star. SIMBAD. wikidata.org.
[3] ↑ Q81756780 — constellation (P59): Cetus. wikidata.org.
[4] ↑ Q81756780 — spectral class (P215): M4V. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[5] ↑ Q81756780 — catalog code (P528): 2MASS J02101775+0006358. SIMBAD. wikidata.org.
[6] ↑ Q81756780 — catalog code (P528): SDSS J021017.76+000636.0. SIMBAD. wikidata.org.
[7] ↑ Q81756780 — catalog code (P528): SDSS J021017.76+000636.1. SIMBAD. wikidata.org.
[8] ↑ Q81756780 — catalog code (P528): Gaia DR2 2507058378741164928. SIMBAD. wikidata.org.
[9] ↑ Q81756780 — apparent magnitude (P1215): {'unit': '1', 'amount': '+22.425'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[10] ↑ Q81756780 — apparent magnitude (P1215): {'unit': '1', 'amount': '+20.960'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[11] ↑ Q81756780 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.555'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[12] ↑ Q81756780 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.655'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[13] ↑ Q81756780 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.694'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[14] ↑ Q81756780 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.312'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[15] ↑ Q81756780 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.440'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[16] ↑ Q81756780 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.56'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[17] ↑ Q81756780 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.0520'}. Gaia Data Release 2. wikidata.org.
[18] ↑ Q81756780 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+0.9382'}. Gaia Data Release 2. wikidata.org.
[19] ↑ Q81756780 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+82'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[20] ↑ Q81756780 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+546.4'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[21] ↑ Q81756780 — SIMBAD ID (P3083): 2MASS J02101775+0006358. wikidata.org.
[22] ↑ Q81756780 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+32.57399850957880'}. Gaia Data Release 2. wikidata.org.
[23] ↑ Q81756780 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+0.11002681013510'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q81756780 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.
[25] ↑ Q81756780 — declination component of proper motion (P10751): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-7.491'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q81756780 — right ascension component of proper motion (P10752): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+19.926'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q81756780 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). Q81756780. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81756780

MLA “Q81756780.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81756780.

BibTeX

@misc{4ortxyz_q81756780_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81756780}}, year = {2026}, url = {https://4ort.xyz/entity/q81756780}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81756780 — https://4ort.xyz/entity/q81756780 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81756780 · Last refreshed: May 7, 2026