Q81767820

low-mass star in the constellation Cetus

Thing low_mass_star Q81767820

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Q81767820

Summary

Q81767820 is a low-mass star^[1].

Key Facts

Q81767820's instance of is recorded as low-mass star^[2].
Q81767820's constellation is recorded as Cetus^[3].
Q81767820's spectral class is recorded as M5V^[4].
Q81767820's catalog code is recorded as 2MASS J00390016-0007457^[5].
Q81767820's catalog code is recorded as SDSS J003900.16-000745.7^[6].
Q81767820's catalog code is recorded as SDSS J003900.17-000745.8^[7].
Q81767820's catalog code is recorded as Gaia DR2 2542982997033575168^[8].
Q81767820's apparent magnitude is recorded as {'unit': '1', 'amount': '+23.667'}^[9].
Q81767820's apparent magnitude is recorded as {'unit': '1', 'amount': '+21.299'}^[10].
Q81767820's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.557'}^[11].
Q81767820's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.195'}^[12].
Q81767820's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.707'}^[13].
Q81767820's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.200'}^[14].
Q81767820's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.051'}^[15].
Q81767820's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.961'}^[16].
Q81767820's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.8184'}^[17].
Q81767820's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+3.0315'}^[18].
Q81767820's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-4'}^[19].
Q81767820's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+289.5'}^[20].
Q81767820's SIMBAD ID is recorded as 2MASS J00390016-0007457^[21].
Q81767820's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+9.75067497845100'}^[22].
Q81767820's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-0.12939322316440'}^[23].
Q81767820's epoch is recorded as J2000.0^[24].
Q81767820's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-13.505'}^[25].
Q81767820's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+17.607'}^[26].

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Quick Facts

Instance of low-mass star

Properties

Apparent magnitude unit: 1, amount: +23.667, unit: 1, amount: +21.299, unit: 1, amount: +19.557, unit: 1, amount: +17.195, unit: 1, amount: +15.707, unit: 1, amount: +15.200, unit: 1, amount: +18.051, unit: 1, amount: +14.961, unit: 1, amount: +18.8184

Catalog code 2MASS J00390016-0007457, SDSS J003900.16-000745.7, SDSS J003900.17-000745.8, Gaia DR2 2542982997033575168

Constellation Cetus

Declination unit: www.wikidata.org, amount: -0.12939322316440

Declination component of proper motion unit: www.wikidata.org, amount: -13.505

Distance from earth unit: www.wikidata.org, amount: +289.5

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +3.0315

Radial velocity unit: www.wikidata.org, amount: -4

Right ascension unit: www.wikidata.org, amount: +9.75067497845100

Right ascension component of proper motion unit: www.wikidata.org, amount: +17.607

Spectral class M5V

External References (2)

Gaia id 2542982997033575168

Simbad id 2MASS J00390016-0007457

References

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

Direct Wikidata claims

[2] ↑ Q81767820 — instance of (P31): low-mass star. SIMBAD. wikidata.org.
[3] ↑ Q81767820 — constellation (P59): Cetus. wikidata.org.
[4] ↑ Q81767820 — spectral class (P215): M5V. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[5] ↑ Q81767820 — catalog code (P528): 2MASS J00390016-0007457. SIMBAD. wikidata.org.
[6] ↑ Q81767820 — catalog code (P528): SDSS J003900.16-000745.7. SIMBAD. wikidata.org.
[7] ↑ Q81767820 — catalog code (P528): SDSS J003900.17-000745.8. SIMBAD. wikidata.org.
[8] ↑ Q81767820 — catalog code (P528): Gaia DR2 2542982997033575168. SIMBAD. wikidata.org.
[9] ↑ Q81767820 — apparent magnitude (P1215): {'unit': '1', 'amount': '+23.667'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[10] ↑ Q81767820 — apparent magnitude (P1215): {'unit': '1', 'amount': '+21.299'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[11] ↑ Q81767820 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.557'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[12] ↑ Q81767820 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.195'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[13] ↑ Q81767820 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.707'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[14] ↑ Q81767820 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.200'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[15] ↑ Q81767820 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.051'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[16] ↑ Q81767820 — apparent magnitude (P1215): {'unit': '1', 'amount': '+14.961'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[17] ↑ Q81767820 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.8184'}. Gaia Data Release 2. wikidata.org.
[18] ↑ Q81767820 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+3.0315'}. Gaia Data Release 2. wikidata.org.
[19] ↑ Q81767820 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-4'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[20] ↑ Q81767820 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+289.5'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[21] ↑ Q81767820 — SIMBAD ID (P3083): 2MASS J00390016-0007457. wikidata.org.
[22] ↑ Q81767820 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+9.75067497845100'}. Gaia Data Release 2. wikidata.org.
[23] ↑ Q81767820 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-0.12939322316440'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q81767820 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.
[25] ↑ Q81767820 — declination component of proper motion (P10751): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-13.505'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q81767820 — right ascension component of proper motion (P10752): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+17.607'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q81767820 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). Q81767820. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81767820

MLA “Q81767820.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81767820.

BibTeX

@misc{4ortxyz_q81767820_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81767820}}, year = {2026}, url = {https://4ort.xyz/entity/q81767820}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81767820 — https://4ort.xyz/entity/q81767820 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81767820 · Last refreshed: May 7, 2026