Q81939654

low-mass star in the constellation Cancer

Thing low_mass_star Q81939654

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Q81939654

Summary

Q81939654 is a low-mass star^[1].

Key Facts

Q81939654's instance of is recorded as low-mass star^[2].
Q81939654's constellation is recorded as Cancer^[3].
Q81939654's spectral class is recorded as M4V^[4].
Q81939654's catalog code is recorded as 2MASS J08040627+2519138^[5].
Q81939654's catalog code is recorded as SDSS J080406.28+251913.3^[6].
Q81939654's catalog code is recorded as SDSS J080406.28+251913.2^[7].
Q81939654's catalog code is recorded as SDSS J080406.29+251913.3^[8].
Q81939654's catalog code is recorded as Gaia DR2 681791324839736832^[9].
Q81939654's redshift is recorded as {'unit': '1', 'amount': '+0.00002'}^[10].
Q81939654's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.945'}^[11].
Q81939654's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.963'}^[12].
Q81939654's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.250'}^[13].
Q81939654's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.531'}^[14].
Q81939654's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.576'}^[15].
Q81939654's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.882'}^[16].
Q81939654's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.517'}^[17].
Q81939654's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.80'}^[18].
Q81939654's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.5512'}^[19].
Q81939654's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+2.3581'}^[20].
Q81939654's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-5'}^[21].
Q81939654's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+515.1'}^[22].
Q81939654's SIMBAD ID is recorded as 2MASS J08040627+2519138^[23].
Q81939654's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+121.02618287541180'}^[24].
Q81939654's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+25.32038089098610'}^[25].
Q81939654's epoch is recorded as J2000.0^[26].

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Quick Facts

Instance of low-mass star

Properties

Apparent magnitude unit: 1, amount: +19.945, unit: 1, amount: +19.963, unit: 1, amount: +18.250, unit: 1, amount: +17.531, unit: 1, amount: +16.576, unit: 1, amount: +15.882, unit: 1, amount: +16.517, unit: 1, amount: +15.80, unit: 1, amount: +19.5512

Catalog code 2MASS J08040627+2519138, SDSS J080406.28+251913.3, SDSS J080406.28+251913.2, SDSS J080406.29+251913.3, Gaia DR2 681791324839736832

Constellation Cancer

Declination unit: www.wikidata.org, amount: +25.32038089098610

Declination component of proper motion unit: www.wikidata.org, amount: -25.268

Distance from earth unit: www.wikidata.org, amount: +515.1

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +2.3581

Radial velocity unit: www.wikidata.org, amount: -5

Redshift unit: 1, amount: +0.00002

Right ascension unit: www.wikidata.org, amount: +121.02618287541180

Right ascension component of proper motion unit: www.wikidata.org, amount: -4.215

Spectral class M4V

External References (2)

Gaia id 681791324839736832

Simbad id 2MASS J08040627+2519138

References

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

Direct Wikidata claims

[2] ↑ Q81939654 — instance of (P31): low-mass star. SIMBAD. wikidata.org.
[3] ↑ Q81939654 — constellation (P59): Cancer. wikidata.org.
[4] ↑ Q81939654 — spectral class (P215): M4V. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[5] ↑ Q81939654 — catalog code (P528): 2MASS J08040627+2519138. SIMBAD. wikidata.org.
[6] ↑ Q81939654 — catalog code (P528): SDSS J080406.28+251913.3. SIMBAD. wikidata.org.
[7] ↑ Q81939654 — catalog code (P528): SDSS J080406.28+251913.2. SIMBAD. wikidata.org.
[8] ↑ Q81939654 — catalog code (P528): SDSS J080406.29+251913.3. SIMBAD. wikidata.org.
[9] ↑ Q81939654 — catalog code (P528): Gaia DR2 681791324839736832. SIMBAD. wikidata.org.
[10] ↑ Q81939654 — redshift (P1090): {'unit': '1', 'amount': '+0.00002'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[11] ↑ Q81939654 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.945'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[12] ↑ Q81939654 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.963'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[13] ↑ Q81939654 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.250'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[14] ↑ Q81939654 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.531'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[15] ↑ Q81939654 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.576'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[16] ↑ Q81939654 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.882'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[17] ↑ Q81939654 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.517'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[18] ↑ Q81939654 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.80'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[19] ↑ Q81939654 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.5512'}. Gaia Data Release 2. wikidata.org.
[20] ↑ Q81939654 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+2.3581'}. Gaia Data Release 2. wikidata.org.
[21] ↑ Q81939654 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-5'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[22] ↑ Q81939654 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+515.1'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[23] ↑ Q81939654 — SIMBAD ID (P3083): 2MASS J08040627+2519138. wikidata.org.
[24] ↑ Q81939654 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+121.02618287541180'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q81939654 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+25.32038089098610'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q81939654 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q81939654 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). Q81939654. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81939654

MLA “Q81939654.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81939654.

BibTeX

@misc{4ortxyz_q81939654_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81939654}}, year = {2026}, url = {https://4ort.xyz/entity/q81939654}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81939654 — https://4ort.xyz/entity/q81939654 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81939654 · Last refreshed: May 7, 2026