Q81769440

low-mass star in the constellation Cetus

Thing low_mass_star Q81769440

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Q81769440

Summary

Q81769440 is a low-mass star^[1].

Key Facts

Q81769440's instance of is recorded as low-mass star^[2].
Q81769440's constellation is recorded as Cetus^[3].
Q81769440's spectral class is recorded as M2V^[4].
Q81769440's catalog code is recorded as 2MASS J01553055-0043217^[5].
Q81769440's catalog code is recorded as SDSS J015530.54-004321.7^[6].
Q81769440's catalog code is recorded as SDSS J015530.55-004321.8^[7].
Q81769440's catalog code is recorded as Gaia DR2 2505966735493097600^[8].
Q81769440's apparent magnitude is recorded as {'unit': '1', 'amount': '+22.491'}^[9].
Q81769440's apparent magnitude is recorded as {'unit': '1', 'amount': '+20.006'}^[10].
Q81769440's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.057'}^[11].
Q81769440's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.705'}^[12].
Q81769440's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.088'}^[13].
Q81769440's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.555'}^[14].
Q81769440's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.607'}^[15].
Q81769440's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.064'}^[16].
Q81769440's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.2704'}^[17].
Q81769440's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.3083'}^[18].
Q81769440's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+20'}^[19].
Q81769440's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+639.0'}^[20].
Q81769440's SIMBAD ID is recorded as 2MASS J01553055-0043217^[21].
Q81769440's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+28.87728304818620'}^[22].
Q81769440's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-0.72271051173620'}^[23].
Q81769440's epoch is recorded as J2000.0^[24].
Q81769440's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+2.926'}^[25].
Q81769440's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+4.086'}^[26].

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Quick Facts

Instance of low-mass star

Properties

Apparent magnitude unit: 1, amount: +22.491, unit: 1, amount: +20.006, unit: 1, amount: +17.057, unit: 1, amount: +15.705, unit: 1, amount: +15.088, unit: 1, amount: +18.555, unit: 1, amount: +17.607, unit: 1, amount: +15.064, unit: 1, amount: +18.2704

Catalog code 2MASS J01553055-0043217, SDSS J015530.54-004321.7, SDSS J015530.55-004321.8, Gaia DR2 2505966735493097600

Constellation Cetus

Declination unit: www.wikidata.org, amount: -0.72271051173620

Declination component of proper motion unit: www.wikidata.org, amount: +2.926

Distance from earth unit: www.wikidata.org, amount: +639.0

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +1.3083

Radial velocity unit: www.wikidata.org, amount: +20

Right ascension unit: www.wikidata.org, amount: +28.87728304818620

Right ascension component of proper motion unit: www.wikidata.org, amount: +4.086

Spectral class M2V

External References (2)

Gaia id 2505966735493097600

Simbad id 2MASS J01553055-0043217

References

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

Direct Wikidata claims

[2] ↑ Q81769440 — instance of (P31): low-mass star. SIMBAD. wikidata.org.
[3] ↑ Q81769440 — constellation (P59): Cetus. wikidata.org.
[4] ↑ Q81769440 — spectral class (P215): M2V. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[5] ↑ Q81769440 — catalog code (P528): 2MASS J01553055-0043217. SIMBAD. wikidata.org.
[6] ↑ Q81769440 — catalog code (P528): SDSS J015530.54-004321.7. SIMBAD. wikidata.org.
[7] ↑ Q81769440 — catalog code (P528): SDSS J015530.55-004321.8. SIMBAD. wikidata.org.
[8] ↑ Q81769440 — catalog code (P528): Gaia DR2 2505966735493097600. SIMBAD. wikidata.org.
[9] ↑ Q81769440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+22.491'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[10] ↑ Q81769440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+20.006'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[11] ↑ Q81769440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.057'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[12] ↑ Q81769440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.705'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[13] ↑ Q81769440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.088'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[14] ↑ Q81769440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.555'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[15] ↑ Q81769440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.607'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[16] ↑ Q81769440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.064'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[17] ↑ Q81769440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.2704'}. Gaia Data Release 2. wikidata.org.
[18] ↑ Q81769440 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.3083'}. Gaia Data Release 2. wikidata.org.
[19] ↑ Q81769440 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+20'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[20] ↑ Q81769440 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+639.0'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[21] ↑ Q81769440 — SIMBAD ID (P3083): 2MASS J01553055-0043217. wikidata.org.
[22] ↑ Q81769440 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+28.87728304818620'}. Gaia Data Release 2. wikidata.org.
[23] ↑ Q81769440 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-0.72271051173620'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q81769440 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.
[25] ↑ Q81769440 — declination component of proper motion (P10751): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+2.926'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q81769440 — right ascension component of proper motion (P10752): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+4.086'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q81769440 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). Q81769440. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81769440

MLA “Q81769440.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81769440.

BibTeX

@misc{4ortxyz_q81769440_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81769440}}, year = {2026}, url = {https://4ort.xyz/entity/q81769440}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81769440 — https://4ort.xyz/entity/q81769440 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81769440 · Last refreshed: May 7, 2026