2MASS J09183815+2134058

brown dwarf

Thing brown_dwarf Q222402

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2MASS J09183815+2134058

Summary

2MASS J09183815+2134058 is a brown dwarf^[1].

Key Facts

2MASS J09183815+2134058's instance of is recorded as brown dwarf^[2].
2MASS J09183815+2134058's constellation is recorded as Cancer^[3].
2MASS J09183815+2134058's spectral class is recorded as L2.7V^[4].
2MASS J09183815+2134058's catalog code is recorded as 2MASS J09183815+2134058^[5].
2MASS J09183815+2134058's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.66'}^[6].
2MASS J09183815+2134058's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.90'}^[7].
2MASS J09183815+2134058's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+43'}^[8].
2MASS J09183815+2134058's Google Knowledge Graph ID is recorded as /g/1z3t2c19r^[9].
2MASS J09183815+2134058's SIMBAD ID is recorded as 2MASSW J0918382+213406^[10].
2MASS J09183815+2134058's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+139.659000'}^[11].
2MASS J09183815+2134058's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+21.568278'}^[12].
2MASS J09183815+2134058's epoch is recorded as J2000.0^[13].
2MASS J09183815+2134058's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-156'}^[14].
2MASS J09183815+2134058's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+330'}^[15].

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Quick Facts

Instance of brown dwarf

Properties

Apparent magnitude unit: 1, amount: +15.66, unit: 1, amount: +13.90

Catalog code 2MASS J09183815+2134058

Constellation Cancer

Declination unit: www.wikidata.org, amount: +21.568278

Declination component of proper motion unit: www.wikidata.org, amount: -156

Distance from earth unit: www.wikidata.org, amount: +43

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Right ascension unit: www.wikidata.org, amount: +139.659000

Right ascension component of proper motion unit: www.wikidata.org, amount: +330

Spectral class L2.7V

External References (2)

Google knowledge graph id /g/1z3t2c19r

Simbad id 2MASSW J0918382+213406

References

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

Direct Wikidata claims

[2] ↑ Q222402 — instance of (P31): brown dwarf. SIMBAD. wikidata.org.
[3] ↑ Q222402 — constellation (P59): Cancer. wikidata.org.
[4] ↑ Q222402 — spectral class (P215): L2.7V. SpeX Spectroscopy of Unresolved Very Low Mass Binaries. II. Identification of 14 Candidate Binaries with Late-M/Early-L and T Dwarf Components. wikidata.org.
[5] ↑ Q222402 — catalog code (P528): 2MASS J09183815+2134058. SIMBAD. wikidata.org.
[6] ↑ Q222402 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.66'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[7] ↑ Q222402 — apparent magnitude (P1215): {'unit': '1', 'amount': '+13.90'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[8] ↑ Q222402 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+43'}. The brown dwarf kinematics project I. Proper motions and tangential velocities for a large sample of late-type M, L, and T dwarfs. wikidata.org.
[9] ↑ Q222402 — Google Knowledge Graph ID (P2671): /g/1z3t2c19r. wikidata.org.
[10] ↑ Q222402 — SIMBAD ID (P3083): 2MASSW J0918382+213406. SIMBAD. wikidata.org.
[11] ↑ Q222402 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+139.659000'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[12] ↑ Q222402 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+21.568278'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[13] ↑ Q222402 — epoch (P6259): J2000.0. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[14] ↑ Q222402 — declination component of proper motion (P10751): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-156'}. The brown dwarf kinematics project I. Proper motions and tangential velocities for a large sample of late-type M, L, and T dwarfs. wikidata.org.
[15] ↑ Q222402 — right ascension component of proper motion (P10752): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+330'}. The brown dwarf kinematics project I. Proper motions and tangential velocities for a large sample of late-type M, L, and T dwarfs. wikidata.org.

Class ancestry

[1] ↑ Q222402 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). 2MASS J09183815+2134058. Retrieved May 7, 2026, from https://4ort.xyz/entity/q222402

MLA “2MASS J09183815+2134058.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q222402.

BibTeX

@misc{4ortxyz_q222402_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{2MASS J09183815+2134058}}, year = {2026}, url = {https://4ort.xyz/entity/q222402}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 2MASS J09183815+2134058 — https://4ort.xyz/entity/q222402 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q222402 · Last refreshed: May 7, 2026