Q81768430

low-mass star in the constellation Cetus

Thing low_mass_star Q81768430

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Q81768430

Summary

Q81768430 is a low-mass star^[1].

Key Facts

Q81768430's instance of is recorded as low-mass star^[2].
Q81768430's constellation is recorded as Cetus^[3].
Q81768430's spectral class is recorded as M2V^[4].
Q81768430's catalog code is recorded as 2MASS J00404921-0029363^[5].
Q81768430's catalog code is recorded as SDSS J004049.21-002936.2^[6].
Q81768430's catalog code is recorded as SDSS J004049.22-002936.3^[7].
Q81768430's catalog code is recorded as Gaia DR2 2542908264602097664^[8].
Q81768430's apparent magnitude is recorded as {'unit': '1', 'amount': '+23.055'}^[9].
Q81768430's apparent magnitude is recorded as {'unit': '1', 'amount': '+20.096'}^[10].
Q81768430's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.026'}^[11].
Q81768430's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.766'}^[12].
Q81768430's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.084'}^[13].
Q81768430's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.895'}^[14].
Q81768430's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.669'}^[15].
Q81768430's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.619'}^[16].
Q81768430's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.3442'}^[17].
Q81768430's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.9379'}^[18].
Q81768430's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-63'}^[19].
Q81768430's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+534.7'}^[20].
Q81768430's SIMBAD ID is recorded as 2MASS J00404921-0029363^[21].
Q81768430's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+10.20509096840440'}^[22].
Q81768430's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-0.49341007465340'}^[23].
Q81768430's epoch is recorded as J2000.0^[24].
Q81768430's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-20.710'}^[25].
Q81768430's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-4.684'}^[26].

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Quick Facts

Instance of low-mass star

Properties

Apparent magnitude unit: 1, amount: +23.055, unit: 1, amount: +20.096, unit: 1, amount: +17.026, unit: 1, amount: +15.766, unit: 1, amount: +15.084, unit: 1, amount: +14.895, unit: 1, amount: +18.669, unit: 1, amount: +17.619, unit: 1, amount: +18.3442

Catalog code 2MASS J00404921-0029363, SDSS J004049.21-002936.2, SDSS J004049.22-002936.3, Gaia DR2 2542908264602097664

Constellation Cetus

Declination unit: www.wikidata.org, amount: -0.49341007465340

Declination component of proper motion unit: www.wikidata.org, amount: -20.710

Distance from earth unit: www.wikidata.org, amount: +534.7

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +1.9379

Radial velocity unit: www.wikidata.org, amount: -63

Right ascension unit: www.wikidata.org, amount: +10.20509096840440

Right ascension component of proper motion unit: www.wikidata.org, amount: -4.684

Spectral class M2V

External References (2)

Gaia id 2542908264602097664

Simbad id 2MASS J00404921-0029363

References

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

Direct Wikidata claims

[2] ↑ Q81768430 — instance of (P31): low-mass star. SIMBAD. wikidata.org.
[3] ↑ Q81768430 — constellation (P59): Cetus. wikidata.org.
[4] ↑ Q81768430 — spectral class (P215): M2V. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[5] ↑ Q81768430 — catalog code (P528): 2MASS J00404921-0029363. SIMBAD. wikidata.org.
[6] ↑ Q81768430 — catalog code (P528): SDSS J004049.21-002936.2. SIMBAD. wikidata.org.
[7] ↑ Q81768430 — catalog code (P528): SDSS J004049.22-002936.3. SIMBAD. wikidata.org.
[8] ↑ Q81768430 — catalog code (P528): Gaia DR2 2542908264602097664. SIMBAD. wikidata.org.
[9] ↑ Q81768430 — apparent magnitude (P1215): {'unit': '1', 'amount': '+23.055'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[10] ↑ Q81768430 — apparent magnitude (P1215): {'unit': '1', 'amount': '+20.096'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[11] ↑ Q81768430 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.026'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[12] ↑ Q81768430 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.766'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[13] ↑ Q81768430 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.084'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[14] ↑ Q81768430 — apparent magnitude (P1215): {'unit': '1', 'amount': '+14.895'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[15] ↑ Q81768430 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.669'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[16] ↑ Q81768430 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.619'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[17] ↑ Q81768430 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.3442'}. Gaia Data Release 2. wikidata.org.
[18] ↑ Q81768430 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.9379'}. Gaia Data Release 2. wikidata.org.
[19] ↑ Q81768430 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-63'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[20] ↑ Q81768430 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+534.7'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[21] ↑ Q81768430 — SIMBAD ID (P3083): 2MASS J00404921-0029363. wikidata.org.
[22] ↑ Q81768430 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+10.20509096840440'}. Gaia Data Release 2. wikidata.org.
[23] ↑ Q81768430 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-0.49341007465340'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q81768430 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.
[25] ↑ Q81768430 — declination component of proper motion (P10751): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-20.710'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q81768430 — right ascension component of proper motion (P10752): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-4.684'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q81768430 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). Q81768430. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81768430

MLA “Q81768430.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81768430.

BibTeX

@misc{4ortxyz_q81768430_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81768430}}, year = {2026}, url = {https://4ort.xyz/entity/q81768430}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81768430 — https://4ort.xyz/entity/q81768430 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81768430 · Last refreshed: May 7, 2026