Q81756890

low-mass star in the constellation Cetus

Thing low_mass_star Q81756890

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Q81756890

Summary

Q81756890 is a low-mass star^[1].

Key Facts

Q81756890's instance of is recorded as low-mass star^[2].
Q81756890's constellation is recorded as Cetus^[3].
Q81756890's spectral class is recorded as M0V^[4].
Q81756890's catalog code is recorded as 2MASS J00394697-0054294^[5].
Q81756890's catalog code is recorded as SDSS J003946.96-005429.4^[6].
Q81756890's catalog code is recorded as SDSS J003946.97-005429.5^[7].
Q81756890's catalog code is recorded as Gaia DR2 2542858580420243200^[8].
Q81756890's apparent magnitude is recorded as {'unit': '1', 'amount': '+22.155'}^[9].
Q81756890's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.601'}^[10].
Q81756890's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.180'}^[11].
Q81756890's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.059'}^[12].
Q81756890's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.188'}^[13].
Q81756890's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.533'}^[14].
Q81756890's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.425'}^[15].
Q81756890's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.270'}^[16].
Q81756890's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.1372'}^[17].
Q81756890's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.2003'}^[18].
Q81756890's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-1'}^[19].
Q81756890's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+1052.2'}^[20].
Q81756890's SIMBAD ID is recorded as 2MASS J00394697-0054294^[21].
Q81756890's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+9.94571442053560'}^[22].
Q81756890's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-0.90818472965600'}^[23].
Q81756890's epoch is recorded as J2000.0^[24].
Q81756890's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-6.844'}^[25].
Q81756890's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-5.341'}^[26].

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Quick Facts

Instance of low-mass star

Properties

Apparent magnitude unit: 1, amount: +22.155, unit: 1, amount: +19.601, unit: 1, amount: +17.180, unit: 1, amount: +16.059, unit: 1, amount: +18.188, unit: 1, amount: +17.533, unit: 1, amount: +15.425, unit: 1, amount: +15.270, unit: 1, amount: +18.1372

Catalog code 2MASS J00394697-0054294, SDSS J003946.96-005429.4, SDSS J003946.97-005429.5, Gaia DR2 2542858580420243200

Constellation Cetus

Declination unit: www.wikidata.org, amount: -0.90818472965600

Declination component of proper motion unit: www.wikidata.org, amount: -6.844

Distance from earth unit: www.wikidata.org, amount: +1052.2

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +1.2003

Radial velocity unit: www.wikidata.org, amount: -1

Right ascension unit: www.wikidata.org, amount: +9.94571442053560

Right ascension component of proper motion unit: www.wikidata.org, amount: -5.341

Spectral class M0V

External References (2)

Gaia id 2542858580420243200

Simbad id 2MASS J00394697-0054294

References

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

Direct Wikidata claims

[2] ↑ Q81756890 — instance of (P31): low-mass star. SIMBAD. wikidata.org.
[3] ↑ Q81756890 — constellation (P59): Cetus. wikidata.org.
[4] ↑ Q81756890 — spectral class (P215): M0V. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[5] ↑ Q81756890 — catalog code (P528): 2MASS J00394697-0054294. SIMBAD. wikidata.org.
[6] ↑ Q81756890 — catalog code (P528): SDSS J003946.96-005429.4. SIMBAD. wikidata.org.
[7] ↑ Q81756890 — catalog code (P528): SDSS J003946.97-005429.5. SIMBAD. wikidata.org.
[8] ↑ Q81756890 — catalog code (P528): Gaia DR2 2542858580420243200. SIMBAD. wikidata.org.
[9] ↑ Q81756890 — apparent magnitude (P1215): {'unit': '1', 'amount': '+22.155'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[10] ↑ Q81756890 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.601'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[11] ↑ Q81756890 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.180'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[12] ↑ Q81756890 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.059'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[13] ↑ Q81756890 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.188'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[14] ↑ Q81756890 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.533'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[15] ↑ Q81756890 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.425'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[16] ↑ Q81756890 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.270'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[17] ↑ Q81756890 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.1372'}. Gaia Data Release 2. wikidata.org.
[18] ↑ Q81756890 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.2003'}. Gaia Data Release 2. wikidata.org.
[19] ↑ Q81756890 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-1'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[20] ↑ Q81756890 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+1052.2'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[21] ↑ Q81756890 — SIMBAD ID (P3083): 2MASS J00394697-0054294. wikidata.org.
[22] ↑ Q81756890 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+9.94571442053560'}. Gaia Data Release 2. wikidata.org.
[23] ↑ Q81756890 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-0.90818472965600'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q81756890 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.
[25] ↑ Q81756890 — declination component of proper motion (P10751): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-6.844'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q81756890 — right ascension component of proper motion (P10752): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-5.341'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q81756890 is an instance of low-mass star (Q12795622) [P31, primary]. Wikidata. wikidata.org.

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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). Q81756890. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81756890

MLA “Q81756890.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81756890.

BibTeX

@misc{4ortxyz_q81756890_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81756890}}, year = {2026}, url = {https://4ort.xyz/entity/q81756890}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81756890 — https://4ort.xyz/entity/q81756890 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81756890 · Last refreshed: May 7, 2026