Q81942704

Thing brown_dwarf Q81942704

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Q81942704

Summary

Q81942704 is a brown dwarf^[1].

Key Facts

Q81942704's instance of is recorded as brown dwarf^[2].
Q81942704's constellation is recorded as Hydra^[3].
Q81942704's spectral class is recorded as M8^[4].
Q81942704's spectral class is recorded as M8e^[5].
Q81942704's catalog code is recorded as 2MASS J09254758+0323121^[6].
Q81942704's catalog code is recorded as SDSS J092547.58+032312.0^[7].
Q81942704's catalog code is recorded as WISEA J092547.36+032311.8^[8].
Q81942704's catalog code is recorded as Gaia DR2 3845668843020728320^[9].
Q81942704's apparent magnitude is recorded as {'unit': '1', 'amount': '+23.822'}^[10].
Q81942704's apparent magnitude is recorded as {'unit': '1', 'amount': '+22.945'}^[11].
Q81942704's apparent magnitude is recorded as {'unit': '1', 'amount': '+21.027'}^[12].
Q81942704's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.141'}^[13].
Q81942704's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.515'}^[14].
Q81942704's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.470'}^[15].
Q81942704's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.830'}^[16].
Q81942704's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.474'}^[17].
Q81942704's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.7340'}^[18].
Q81942704's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+19.4003'}^[19].
Q81942704's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+64.9'}^[20].
Q81942704's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+51.5456'}^[21].
Q81942704's SIMBAD ID is recorded as 2MASS J09254758+0323121^[22].
Q81942704's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+141.44836052501160'}^[23].
Q81942704's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+3.38668355661310'}^[24].
Q81942704's epoch is recorded as J2000.0^[25].
Q81942704's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-25.651'}^[26].

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Quick Facts

Instance of brown dwarf

Properties

Apparent magnitude unit: 1, amount: +23.822, unit: 1, amount: +22.945, unit: 1, amount: +21.027, unit: 1, amount: +18.141, unit: 1, amount: +16.515, unit: 1, amount: +14.470, unit: 1, amount: +13.830, unit: 1, amount: +13.474, unit: 1, amount: +18.7340

Catalog code 2MASS J09254758+0323121, SDSS J092547.58+032312.0, WISEA J092547.36+032311.8, Gaia DR2 3845668843020728320

Constellation Hydra

Declination unit: www.wikidata.org, amount: +3.38668355661310

Declination component of proper motion unit: www.wikidata.org, amount: -25.651

Distance from earth unit: www.wikidata.org, amount: +51.5456

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +19.4003

Radial velocity unit: www.wikidata.org, amount: +64.9

Right ascension unit: www.wikidata.org, amount: +141.44836052501160

Right ascension component of proper motion unit: www.wikidata.org, amount: -339.809

Spectral class M8, M8e

External References (2)

Gaia id 3845668843020728320

Simbad id 2MASS J09254758+0323121

References

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

Direct Wikidata claims

[2] ↑ Q81942704 — instance of (P31): brown dwarf. SIMBAD. wikidata.org.
[3] ↑ Q81942704 — constellation (P59): Hydra. wikidata.org.
[4] ↑ Q81942704 — spectral class (P215): M8. Constraining the age-activity relation for cool stars: the Sloan Digital Sky Survey Data Release 5 low-mass star spectroscopic sample. wikidata.org.
[5] ↑ Q81942704 — spectral class (P215): M8e. Constraining the age-activity relation for cool stars: the Sloan Digital Sky Survey Data Release 5 low-mass star spectroscopic sample. wikidata.org.
[6] ↑ Q81942704 — catalog code (P528): 2MASS J09254758+0323121. SIMBAD. wikidata.org.
[7] ↑ Q81942704 — catalog code (P528): SDSS J092547.58+032312.0. SIMBAD. wikidata.org.
[8] ↑ Q81942704 — catalog code (P528): WISEA J092547.36+032311.8. SIMBAD. wikidata.org.
[9] ↑ Q81942704 — catalog code (P528): Gaia DR2 3845668843020728320. SIMBAD. wikidata.org.
[10] ↑ Q81942704 — apparent magnitude (P1215): {'unit': '1', 'amount': '+23.822'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[11] ↑ Q81942704 — apparent magnitude (P1215): {'unit': '1', 'amount': '+22.945'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[12] ↑ Q81942704 — apparent magnitude (P1215): {'unit': '1', 'amount': '+21.027'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[13] ↑ Q81942704 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.141'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[14] ↑ Q81942704 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.515'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[15] ↑ Q81942704 — apparent magnitude (P1215): {'unit': '1', 'amount': '+14.470'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[16] ↑ Q81942704 — apparent magnitude (P1215): {'unit': '1', 'amount': '+13.830'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[17] ↑ Q81942704 — apparent magnitude (P1215): {'unit': '1', 'amount': '+13.474'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[18] ↑ Q81942704 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.7340'}. Gaia Data Release 2. wikidata.org.
[19] ↑ Q81942704 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+19.4003'}. Gaia Data Release 2. wikidata.org.
[20] ↑ Q81942704 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+64.9'}. Constraining the age-activity relation for cool stars: the Sloan Digital Sky Survey Data Release 5 low-mass star spectroscopic sample. wikidata.org.
[21] ↑ Q81942704 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+51.5456'}. Gaia Data Release 2. wikidata.org.
[22] ↑ Q81942704 — SIMBAD ID (P3083): 2MASS J09254758+0323121. wikidata.org.
[23] ↑ Q81942704 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+141.44836052501160'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q81942704 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+3.38668355661310'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q81942704 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.
[26] ↑ Q81942704 — declination component of proper motion (P10751): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-25.651'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q81942704 is an instance of brown dwarf (Q101600) [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). Q81942704. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81942704

MLA “Q81942704.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81942704.

BibTeX

@misc{4ortxyz_q81942704_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81942704}}, year = {2026}, url = {https://4ort.xyz/entity/q81942704}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81942704 — https://4ort.xyz/entity/q81942704 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81942704 · Last refreshed: May 7, 2026