Q81556536

star in the constellation Cetus

Thing star Q81556536

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Q81556536

Summary

Q81556536 is a star^[1].

Key Facts

Q81556536's instance of is recorded as star^[2].
Q81556536's constellation is recorded as Cetus^[3].
Q81556536's catalog code is recorded as 2MASS J00561451-2016407^[4].
Q81556536's catalog code is recorded as BD-21 138^[5].
Q81556536's catalog code is recorded as CPD-20 123^[6].
Q81556536's catalog code is recorded as GSC 05850-01123^[7].
Q81556536's catalog code is recorded as PPM 243413^[8].
Q81556536's catalog code is recorded as TYC 5850-1123-1^[9].
Q81556536's catalog code is recorded as RAVE J005614.5-201641^[10].
Q81556536's catalog code is recorded as Gaia DR1 2355833370522478976^[11].
Q81556536's apparent magnitude is recorded as {'unit': '1', 'amount': '+9.207'}^[12].
Q81556536's apparent magnitude is recorded as {'unit': '1', 'amount': '+8.828'}^[13].
Q81556536's apparent magnitude is recorded as {'unit': '1', 'amount': '+8.785'}^[14].
Q81556536's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.982'}^[15].
Q81556536's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.372'}^[16].
Q81556536's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.692'}^[17].
Q81556536's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.212'}^[18].
Q81556536's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.073'}^[19].
Q81556536's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.172'}^[20].
Q81556536's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+3.13'}^[21].
Q81556536's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+9.175'}^[22].
Q81556536's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+9.18'}^[23].
Q81556536's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+249.438'}^[24].
Q81556536's SIMBAD ID is recorded as BD-21 138^[25].
Q81556536's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+14.06048667'}^[26].

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Quick Facts

Instance of star

Properties

Apparent magnitude unit: 1, amount: +9.207, unit: 1, amount: +8.828, unit: 1, amount: +8.785, unit: 1, amount: +10.982, unit: 1, amount: +10.372, unit: 1, amount: +10.692, unit: 1, amount: +10.212, unit: 1, amount: +10.073, unit: 1, amount: +10.172

Catalog code 2MASS J00561451-2016407, BD-21 138, CPD-20 123, GSC 05850-01123, PPM 243413, TYC 5850-1123-1, RAVE J005614.5-201641, Gaia DR1 2355833370522478976

Constellation Cetus

Declination unit: www.wikidata.org, amount: -20.27799111

Declination component of proper motion unit: www.wikidata.org, amount: -25.230

Distance from earth unit: www.wikidata.org, amount: +249.438

Effective temperature unit: www.wikidata.org, amount: +5679

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +3.13

Radial velocity unit: www.wikidata.org, amount: +9.175, unit: www.wikidata.org, amount: +9.18

Right ascension unit: www.wikidata.org, amount: +14.06048667

Right ascension component of proper motion unit: www.wikidata.org, amount: +11.250

Surface gravity unit: www.wikidata.org, amount: +1900

External References (2)

Gaia id 2355833374818996736

Simbad id BD-21 138

References

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

Direct Wikidata claims

[2] ↑ Q81556536 — instance of (P31): star. SIMBAD. wikidata.org.
[3] ↑ Q81556536 — constellation (P59): Cetus. wikidata.org.
[4] ↑ Q81556536 — catalog code (P528): 2MASS J00561451-2016407. SIMBAD. wikidata.org.
[5] ↑ Q81556536 — catalog code (P528): BD-21 138. SIMBAD. wikidata.org.
[6] ↑ Q81556536 — catalog code (P528): CPD-20 123. SIMBAD. wikidata.org.
[7] ↑ Q81556536 — catalog code (P528): GSC 05850-01123. SIMBAD. wikidata.org.
[8] ↑ Q81556536 — catalog code (P528): PPM 243413. SIMBAD. wikidata.org.
[9] ↑ Q81556536 — catalog code (P528): TYC 5850-1123-1. SIMBAD. wikidata.org.
[10] ↑ Q81556536 — catalog code (P528): RAVE J005614.5-201641. SIMBAD. wikidata.org.
[11] ↑ Q81556536 — catalog code (P528): Gaia DR1 2355833370522478976. SIMBAD. wikidata.org.
[12] ↑ Q81556536 — apparent magnitude (P1215): {'unit': '1', 'amount': '+9.207'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[13] ↑ Q81556536 — apparent magnitude (P1215): {'unit': '1', 'amount': '+8.828'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[14] ↑ Q81556536 — apparent magnitude (P1215): {'unit': '1', 'amount': '+8.785'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[15] ↑ Q81556536 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.982'}. APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings. wikidata.org.
[16] ↑ Q81556536 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.372'}. APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings. wikidata.org.
[17] ↑ Q81556536 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.692'}. APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings. wikidata.org.
[18] ↑ Q81556536 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.212'}. APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings. wikidata.org.
[19] ↑ Q81556536 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.073'}. APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings. wikidata.org.
[20] ↑ Q81556536 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.172'}. Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties. wikidata.org.
[21] ↑ Q81556536 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+3.13'}. Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties. wikidata.org.
[22] ↑ Q81556536 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+9.175'}. The Radial Velocity Experiment (RAVE): fifth data release. wikidata.org.
[23] ↑ Q81556536 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+9.18'}. The Radial Velocity Experiment (RAVE): fifth data release. wikidata.org.
[24] ↑ Q81556536 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+249.438'}. The Radial Velocity Experiment (RAVE): fifth data release. wikidata.org.
[25] ↑ Q81556536 — SIMBAD ID (P3083): BD-21 138. wikidata.org.
[26] ↑ Q81556536 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+14.06048667'}. Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties. wikidata.org.

Class ancestry

[1] ↑ Q81556536 is an instance of star (Q523) [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). Q81556536. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81556536

MLA “Q81556536.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81556536.

BibTeX

@misc{4ortxyz_q81556536_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81556536}}, year = {2026}, url = {https://4ort.xyz/entity/q81556536}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81556536 — https://4ort.xyz/entity/q81556536 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81556536 · Last refreshed: May 7, 2026