Q81762378

low-mass star in the constellation Cetus

Thing low_mass_star Q81762378

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Q81762378

Summary

Q81762378 is a low-mass star^[1].

Key Facts

Q81762378's instance of is recorded as low-mass star^[2].
Q81762378's constellation is recorded as Cetus^[3].
Q81762378's spectral class is recorded as M4V^[4].
Q81762378's catalog code is recorded as 2MASS J00390889-0108321^[5].
Q81762378's catalog code is recorded as SDSS J003908.90-010832.0^[6].
Q81762378's catalog code is recorded as Gaia DR2 2542846107835595648^[7].
Q81762378's apparent magnitude is recorded as {'unit': '1', 'amount': '+22.948'}^[8].
Q81762378's apparent magnitude is recorded as {'unit': '1', 'amount': '+20.138'}^[9].
Q81762378's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.781'}^[10].
Q81762378's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.038'}^[11].
Q81762378's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.724'}^[12].
Q81762378's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.045'}^[13].
Q81762378's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.763'}^[14].
Q81762378's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.593'}^[15].
Q81762378's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.3140'}^[16].
Q81762378's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+0.9860'}^[17].
Q81762378's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-14'}^[18].
Q81762378's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+462.0'}^[19].
Q81762378's SIMBAD ID is recorded as 2MASS J00390889-0108321^[20].
Q81762378's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+9.78708073643350'}^[21].
Q81762378's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-1.14224383029270'}^[22].
Q81762378's epoch is recorded as J2000.0^[23].
Q81762378's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-8.609'}^[24].
Q81762378's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+10.229'}^[25].
Q81762378's Gaia ID is recorded as 2542846107835595648^[26].

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Quick Facts

Instance of low-mass star

Properties

Apparent magnitude unit: 1, amount: +22.948, unit: 1, amount: +20.138, unit: 1, amount: +18.781, unit: 1, amount: +17.038, unit: 1, amount: +15.724, unit: 1, amount: +15.045, unit: 1, amount: +14.763, unit: 1, amount: +17.593, unit: 1, amount: +18.3140

Catalog code 2MASS J00390889-0108321, SDSS J003908.90-010832.0, Gaia DR2 2542846107835595648

Constellation Cetus

Declination unit: www.wikidata.org, amount: -1.14224383029270

Declination component of proper motion unit: www.wikidata.org, amount: -8.609

Distance from earth unit: www.wikidata.org, amount: +462.0

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +0.9860

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

Right ascension unit: www.wikidata.org, amount: +9.78708073643350

Right ascension component of proper motion unit: www.wikidata.org, amount: +10.229

Spectral class M4V

External References (2)

Gaia id 2542846107835595648

Simbad id 2MASS J00390889-0108321

References

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

Direct Wikidata claims

[2] ↑ Q81762378 — instance of (P31): low-mass star. SIMBAD. wikidata.org.
[3] ↑ Q81762378 — constellation (P59): Cetus. wikidata.org.
[4] ↑ Q81762378 — spectral class (P215): M4V. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[5] ↑ Q81762378 — catalog code (P528): 2MASS J00390889-0108321. SIMBAD. wikidata.org.
[6] ↑ Q81762378 — catalog code (P528): SDSS J003908.90-010832.0. SIMBAD. wikidata.org.
[7] ↑ Q81762378 — catalog code (P528): Gaia DR2 2542846107835595648. SIMBAD. wikidata.org.
[8] ↑ Q81762378 — apparent magnitude (P1215): {'unit': '1', 'amount': '+22.948'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[9] ↑ Q81762378 — apparent magnitude (P1215): {'unit': '1', 'amount': '+20.138'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[10] ↑ Q81762378 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.781'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[11] ↑ Q81762378 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.038'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[12] ↑ Q81762378 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.724'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[13] ↑ Q81762378 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.045'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[14] ↑ Q81762378 — apparent magnitude (P1215): {'unit': '1', 'amount': '+14.763'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[15] ↑ Q81762378 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.593'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[16] ↑ Q81762378 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.3140'}. Gaia Data Release 2. wikidata.org.
[17] ↑ Q81762378 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+0.9860'}. Gaia Data Release 2. wikidata.org.
[18] ↑ Q81762378 — 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.
[19] ↑ Q81762378 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+462.0'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[20] ↑ Q81762378 — SIMBAD ID (P3083): 2MASS J00390889-0108321. wikidata.org.
[21] ↑ Q81762378 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+9.78708073643350'}. Gaia Data Release 2. wikidata.org.
[22] ↑ Q81762378 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-1.14224383029270'}. Gaia Data Release 2. wikidata.org.
[23] ↑ Q81762378 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.
[24] ↑ Q81762378 — declination component of proper motion (P10751): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-8.609'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q81762378 — right ascension component of proper motion (P10752): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+10.229'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q81762378 — Gaia ID (P13228): 2542846107835595648. wikidata.org.

Class ancestry

[1] ↑ Q81762378 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). Q81762378. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81762378

MLA “Q81762378.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81762378.

BibTeX

@misc{4ortxyz_q81762378_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81762378}}, year = {2026}, url = {https://4ort.xyz/entity/q81762378}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81762378 — https://4ort.xyz/entity/q81762378 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81762378 · Last refreshed: May 7, 2026