2MASS J15484912+1722359

brown dwarf

Thing brown_dwarf Q222647

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2MASS J15484912+1722359

Summary

2MASS J15484912+1722359 is a brown dwarf^[1].

Key Facts

2MASS J15484912+1722359's instance of is recorded as brown dwarf^[2].
2MASS J15484912+1722359's constellation is recorded as Serpens^[3].
2MASS J15484912+1722359's spectral class is recorded as L4.5^[4].
2MASS J15484912+1722359's catalog code is recorded as 2MASS J15484912+1722359^[5].
2MASS J15484912+1722359's catalog code is recorded as SDSS J154849.01+172235.3^[6].
2MASS J15484912+1722359's catalog code is recorded as SDSS J154849.02+172235.4^[7].
2MASS J15484912+1722359's redshift is recorded as {'unit': '1', 'amount': '+0.00007'}^[8].
2MASS J15484912+1722359's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.104'}^[9].
2MASS J15484912+1722359's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.142'}^[10].
2MASS J15484912+1722359's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.456'}^[11].
2MASS J15484912+1722359's apparent magnitude is recorded as {'unit': '1', 'amount': '+24.45'}^[12].
2MASS J15484912+1722359's apparent magnitude is recorded as {'unit': '1', 'amount': '+25.07'}^[13].
2MASS J15484912+1722359's apparent magnitude is recorded as {'unit': '1', 'amount': '+24.03'}^[14].
2MASS J15484912+1722359's apparent magnitude is recorded as {'unit': '1', 'amount': '+21.30'}^[15].
2MASS J15484912+1722359's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.82'}^[16].
2MASS J15484912+1722359's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-107.50'}^[17].
2MASS J15484912+1722359's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+19.7'}^[18].
2MASS J15484912+1722359's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+237.2046958'}^[19].
2MASS J15484912+1722359's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+17.3766583'}^[20].
2MASS J15484912+1722359's epoch is recorded as J2000.0^[21].
2MASS J15484912+1722359's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-103.8'}^[22].
2MASS J15484912+1722359's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-288.5'}^[23].

Body

Definition and Type

2MASS J15484912+1722359's instance of is recorded as brown dwarf^[2].

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Quick Facts

Instance of brown dwarf

Properties

Apparent magnitude unit: 1, amount: +16.104, unit: 1, amount: +15.142, unit: 1, amount: +14.456, unit: 1, amount: +24.45, unit: 1, amount: +25.07, unit: 1, amount: +24.03, unit: 1, amount: +21.30, unit: 1, amount: +18.82

Catalog code 2MASS J15484912+1722359, SDSS J154849.01+172235.3, SDSS J154849.02+172235.4

Constellation Serpens

Declination unit: www.wikidata.org, amount: +17.3766583

Declination component of proper motion unit: www.wikidata.org, amount: -103.8

Distance from earth unit: www.wikidata.org, amount: +19.7

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Radial velocity unit: www.wikidata.org, amount: -107.50

Redshift unit: 1, amount: +0.00007

Right ascension unit: www.wikidata.org, amount: +237.2046958

Right ascension component of proper motion unit: www.wikidata.org, amount: -288.5

Spectral class L4.5

External References (2)

Google knowledge graph id /g/1z3t2cjhp

Simbad id 2MASS J15484912+1722359

References

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

Direct Wikidata claims

[2] ↑ Q222647 — instance of (P31): brown dwarf. SIMBAD. wikidata.org.
[3] ↑ Q222647 — constellation (P59): Serpens. wikidata.org.
[4] ↑ Q222647 — spectral class (P215): L4.5. Discovery of the young L dwarf WISE J174102.78-464225.5. wikidata.org.
[5] ↑ Q222647 — catalog code (P528): 2MASS J15484912+1722359. SIMBAD. wikidata.org.
[6] ↑ Q222647 — catalog code (P528): SDSS J154849.01+172235.3. SIMBAD. wikidata.org.
[7] ↑ Q222647 — catalog code (P528): SDSS J154849.02+172235.4. SIMBAD. wikidata.org.
[8] ↑ Q222647 — redshift (P1090): {'unit': '1', 'amount': '+0.00007'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[9] ↑ Q222647 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.104'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[10] ↑ Q222647 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.142'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[11] ↑ Q222647 — apparent magnitude (P1215): {'unit': '1', 'amount': '+14.456'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[12] ↑ Q222647 — apparent magnitude (P1215): {'unit': '1', 'amount': '+24.45'}. SIMBAD. wikidata.org.
[13] ↑ Q222647 — apparent magnitude (P1215): {'unit': '1', 'amount': '+25.07'}. SIMBAD. wikidata.org.
[14] ↑ Q222647 — apparent magnitude (P1215): {'unit': '1', 'amount': '+24.03'}. SIMBAD. wikidata.org.
[15] ↑ Q222647 — apparent magnitude (P1215): {'unit': '1', 'amount': '+21.30'}. SIMBAD. wikidata.org.
[16] ↑ Q222647 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.82'}. SIMBAD. wikidata.org.
[17] ↑ Q222647 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-107.50'}. Colors and kinematics of L dwarfs from the Sloan Digital Sky Survey. wikidata.org.
[18] ↑ Q222647 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+19.7'}. Colors and kinematics of L dwarfs from the Sloan Digital Sky Survey. wikidata.org.
[19] ↑ Q222647 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+237.2046958'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[20] ↑ Q222647 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+17.3766583'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[21] ↑ Q222647 — epoch (P6259): J2000.0. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[22] ↑ Q222647 — declination component of proper motion (P10751): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-103.8'}. The AllWISE motion survey, part 2. wikidata.org.
[23] ↑ Q222647 — right ascension component of proper motion (P10752): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-288.5'}. The AllWISE motion survey, part 2. wikidata.org.

Class ancestry

[1] ↑ Q222647 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 J15484912+1722359. Retrieved May 7, 2026, from https://4ort.xyz/entity/q222647

MLA “2MASS J15484912+1722359.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q222647.

BibTeX

@misc{4ortxyz_q222647_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{2MASS J15484912+1722359}}, year = {2026}, url = {https://4ort.xyz/entity/q222647}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 2MASS J15484912+1722359 — https://4ort.xyz/entity/q222647 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q222647 · Last refreshed: May 7, 2026