Q81946253

low-mass star in the constellation Hydra

Thing low_mass_star Q81946253

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Q81946253

Summary

Q81946253 is a low-mass star^[1].

Key Facts

Q81946253's instance of is recorded as low-mass star^[2].
Q81946253's constellation is recorded as Hydra^[3].
Q81946253's spectral class is recorded as M7V^[4].
Q81946253's catalog code is recorded as 2MASS J09133091+0121287^[5].
Q81946253's catalog code is recorded as SDSS J091330.91+012129.0^[6].
Q81946253's catalog code is recorded as SDSS J091330.91+012129.1^[7].
Q81946253's catalog code is recorded as Gaia DR2 3843511605501472384^[8].
Q81946253's redshift is recorded as {'unit': '1', 'amount': '-0.00003'}^[9].
Q81946253's apparent magnitude is recorded as {'unit': '1', 'amount': '+25.451'}^[10].
Q81946253's apparent magnitude is recorded as {'unit': '1', 'amount': '+22.541'}^[11].
Q81946253's apparent magnitude is recorded as {'unit': '1', 'amount': '+21.006'}^[12].
Q81946253's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.747'}^[13].
Q81946253's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.463'}^[14].
Q81946253's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.631'}^[15].
Q81946253's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.067'}^[16].
Q81946253's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.882'}^[17].
Q81946253's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.4808'}^[18].
Q81946253's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+7.1315'}^[19].
Q81946253's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+25'}^[20].
Q81946253's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+140.2230'}^[21].
Q81946253's SIMBAD ID is recorded as 2MASS J09133091+0121287^[22].
Q81946253's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+138.37878317331020'}^[23].
Q81946253's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+1.35805286380590'}^[24].
Q81946253's epoch is recorded as J2000.0^[25].
Q81946253's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-25.637'}^[26].

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Quick Facts

Instance of low-mass star

Properties

Apparent magnitude unit: 1, amount: +25.451, unit: 1, amount: +22.541, unit: 1, amount: +21.006, unit: 1, amount: +18.747, unit: 1, amount: +17.463, unit: 1, amount: +15.631, unit: 1, amount: +15.067, unit: 1, amount: +14.882, unit: 1, amount: +19.4808

Catalog code 2MASS J09133091+0121287, SDSS J091330.91+012129.0, SDSS J091330.91+012129.1, Gaia DR2 3843511605501472384

Constellation Hydra

Declination unit: www.wikidata.org, amount: +1.35805286380590

Declination component of proper motion unit: www.wikidata.org, amount: -25.637

Distance from earth unit: www.wikidata.org, amount: +140.2230

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +7.1315

Radial velocity unit: www.wikidata.org, amount: +25

Redshift unit: 1, amount: -0.00003

Right ascension unit: www.wikidata.org, amount: +138.37878317331020

Right ascension component of proper motion unit: www.wikidata.org, amount: -24.370

Spectral class M7V

External References (2)

Gaia id 3843511605501472384

Simbad id 2MASS J09133091+0121287

References

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

Direct Wikidata claims

[2] ↑ Q81946253 — instance of (P31): low-mass star. SIMBAD. wikidata.org.
[3] ↑ Q81946253 — constellation (P59): Hydra. wikidata.org.
[4] ↑ Q81946253 — spectral class (P215): M7V. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[5] ↑ Q81946253 — catalog code (P528): 2MASS J09133091+0121287. SIMBAD. wikidata.org.
[6] ↑ Q81946253 — catalog code (P528): SDSS J091330.91+012129.0. SIMBAD. wikidata.org.
[7] ↑ Q81946253 — catalog code (P528): SDSS J091330.91+012129.1. SIMBAD. wikidata.org.
[8] ↑ Q81946253 — catalog code (P528): Gaia DR2 3843511605501472384. SIMBAD. wikidata.org.
[9] ↑ Q81946253 — redshift (P1090): {'unit': '1', 'amount': '-0.00003'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[10] ↑ Q81946253 — apparent magnitude (P1215): {'unit': '1', 'amount': '+25.451'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[11] ↑ Q81946253 — apparent magnitude (P1215): {'unit': '1', 'amount': '+22.541'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[12] ↑ Q81946253 — apparent magnitude (P1215): {'unit': '1', 'amount': '+21.006'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[13] ↑ Q81946253 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.747'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[14] ↑ Q81946253 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.463'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[15] ↑ Q81946253 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.631'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[16] ↑ Q81946253 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.067'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[17] ↑ Q81946253 — apparent magnitude (P1215): {'unit': '1', 'amount': '+14.882'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[18] ↑ Q81946253 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.4808'}. Gaia Data Release 2. wikidata.org.
[19] ↑ Q81946253 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+7.1315'}. Gaia Data Release 2. wikidata.org.
[20] ↑ Q81946253 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+25'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[21] ↑ Q81946253 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+140.2230'}. Gaia Data Release 2. wikidata.org.
[22] ↑ Q81946253 — SIMBAD ID (P3083): 2MASS J09133091+0121287. wikidata.org.
[23] ↑ Q81946253 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+138.37878317331020'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q81946253 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+1.35805286380590'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q81946253 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.
[26] ↑ Q81946253 — declination component of proper motion (P10751): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-25.637'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q81946253 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). Q81946253. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81946253

MLA “Q81946253.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81946253.

BibTeX

@misc{4ortxyz_q81946253_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81946253}}, year = {2026}, url = {https://4ort.xyz/entity/q81946253}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81946253 — https://4ort.xyz/entity/q81946253 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81946253 · Last refreshed: May 7, 2026