Q81764308

low-mass star in the constellation Cetus

Thing low_mass_star Q81764308

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Q81764308

Summary

Q81764308 is a low-mass star^[1].

Key Facts

Q81764308's instance of is recorded as low-mass star^[2].
Q81764308's constellation is recorded as Cetus^[3].
Q81764308's spectral class is recorded as M2V^[4].
Q81764308's catalog code is recorded as 2MASS J02012122-0017482^[5].
Q81764308's catalog code is recorded as SDSS J020121.21-001748.3^[6].
Q81764308's catalog code is recorded as SDSS J020121.22-001748.4^[7].
Q81764308's catalog code is recorded as Gaia DR2 2507533917519685632^[8].
Q81764308's apparent magnitude is recorded as {'unit': '1', 'amount': '+22.060'}^[9].
Q81764308's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.633'}^[10].
Q81764308's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.783'}^[11].
Q81764308's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.523'}^[12].
Q81764308's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.883'}^[13].
Q81764308's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.620'}^[14].
Q81764308's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.202'}^[15].
Q81764308's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.241'}^[16].
Q81764308's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.9335'}^[17].
Q81764308's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.4717'}^[18].
Q81764308's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-14'}^[19].
Q81764308's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+600.4'}^[20].
Q81764308's SIMBAD ID is recorded as 2MASS J02012122-0017482^[21].
Q81764308's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+30.33841210205300'}^[22].
Q81764308's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-0.29675958034270'}^[23].
Q81764308's epoch is recorded as J2000.0^[24].
Q81764308's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-6.392'}^[25].
Q81764308's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-1.598'}^[26].

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Quick Facts

Instance of low-mass star

Properties

Apparent magnitude unit: 1, amount: +22.060, unit: 1, amount: +19.633, unit: 1, amount: +16.783, unit: 1, amount: +15.523, unit: 1, amount: +14.883, unit: 1, amount: +14.620, unit: 1, amount: +18.202, unit: 1, amount: +17.241, unit: 1, amount: +17.9335

Catalog code 2MASS J02012122-0017482, SDSS J020121.21-001748.3, SDSS J020121.22-001748.4, Gaia DR2 2507533917519685632

Constellation Cetus

Declination unit: www.wikidata.org, amount: -0.29675958034270

Declination component of proper motion unit: www.wikidata.org, amount: -6.392

Distance from earth unit: www.wikidata.org, amount: +600.4

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +1.4717

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

Right ascension unit: www.wikidata.org, amount: +30.33841210205300

Right ascension component of proper motion unit: www.wikidata.org, amount: -1.598

Spectral class M2V

External References (2)

Gaia id 2507533917519685632

Simbad id 2MASS J02012122-0017482

References

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

Direct Wikidata claims

[2] ↑ Q81764308 — instance of (P31): low-mass star. SIMBAD. wikidata.org.
[3] ↑ Q81764308 — constellation (P59): Cetus. wikidata.org.
[4] ↑ Q81764308 — spectral class (P215): M2V. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[5] ↑ Q81764308 — catalog code (P528): 2MASS J02012122-0017482. SIMBAD. wikidata.org.
[6] ↑ Q81764308 — catalog code (P528): SDSS J020121.21-001748.3. SIMBAD. wikidata.org.
[7] ↑ Q81764308 — catalog code (P528): SDSS J020121.22-001748.4. SIMBAD. wikidata.org.
[8] ↑ Q81764308 — catalog code (P528): Gaia DR2 2507533917519685632. SIMBAD. wikidata.org.
[9] ↑ Q81764308 — apparent magnitude (P1215): {'unit': '1', 'amount': '+22.060'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[10] ↑ Q81764308 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.633'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[11] ↑ Q81764308 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.783'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[12] ↑ Q81764308 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.523'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[13] ↑ Q81764308 — apparent magnitude (P1215): {'unit': '1', 'amount': '+14.883'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[14] ↑ Q81764308 — apparent magnitude (P1215): {'unit': '1', 'amount': '+14.620'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[15] ↑ Q81764308 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.202'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[16] ↑ Q81764308 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.241'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[17] ↑ Q81764308 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.9335'}. Gaia Data Release 2. wikidata.org.
[18] ↑ Q81764308 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.4717'}. Gaia Data Release 2. wikidata.org.
[19] ↑ Q81764308 — 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.
[20] ↑ Q81764308 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+600.4'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[21] ↑ Q81764308 — SIMBAD ID (P3083): 2MASS J02012122-0017482. wikidata.org.
[22] ↑ Q81764308 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+30.33841210205300'}. Gaia Data Release 2. wikidata.org.
[23] ↑ Q81764308 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-0.29675958034270'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q81764308 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.
[25] ↑ Q81764308 — declination component of proper motion (P10751): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-6.392'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q81764308 — right ascension component of proper motion (P10752): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-1.598'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q81764308 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). Q81764308. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81764308

MLA “Q81764308.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81764308.

BibTeX

@misc{4ortxyz_q81764308_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81764308}}, year = {2026}, url = {https://4ort.xyz/entity/q81764308}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81764308 — https://4ort.xyz/entity/q81764308 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81764308 · Last refreshed: May 7, 2026