Q87090239

star in the constellation Hydra

Thing star Q87090239

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Q87090239

Summary

Q87090239 is a star^[1].

Key Facts

Q87090239's instance of is recorded as star^[2].
Q87090239's constellation is recorded as Hydra^[3].
Q87090239's catalog code is recorded as GSC 06643-00491^[4].
Q87090239's catalog code is recorded as TYC 6643-491-1^[5].
Q87090239's catalog code is recorded as 2MASS J10540438-2708426^[6].
Q87090239's catalog code is recorded as RAVE J105404.4-270843^[7].
Q87090239's catalog code is recorded as Gaia DR1 5457055429047625216^[8].
Q87090239's catalog code is recorded as Gaia DR2 5457055433344881280^[9].
Q87090239's apparent magnitude is recorded as {'unit': '1', 'amount': '+8.810'}^[10].
Q87090239's apparent magnitude is recorded as {'unit': '1', 'amount': '+8.300'}^[11].
Q87090239's apparent magnitude is recorded as {'unit': '1', 'amount': '+8.180'}^[12].
Q87090239's apparent magnitude is recorded as {'unit': '1', 'amount': '+11.677'}^[13].
Q87090239's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.656'}^[14].
Q87090239's apparent magnitude is recorded as {'unit': '1', 'amount': '+11.231'}^[15].
Q87090239's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.380'}^[16].
Q87090239's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.026'}^[17].
Q87090239's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.3781'}^[18].
Q87090239's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.0273'}^[19].
Q87090239's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-15.91'}^[20].
Q87090239's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+973.4255'}^[21].
Q87090239's SIMBAD ID is recorded as TYC 6643-491-1^[22].
Q87090239's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+163.51831197201920'}^[23].
Q87090239's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-27.14516914941100'}^[24].
Q87090239's epoch is recorded as J2000.0^[25].
Q87090239's effective temperature is recorded as {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+4859'}^[26].

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Quick Facts

Instance of star

Properties

Apparent magnitude unit: 1, amount: +8.810, unit: 1, amount: +8.300, unit: 1, amount: +8.180, unit: 1, amount: +11.677, unit: 1, amount: +10.656, unit: 1, amount: +11.231, unit: 1, amount: +10.380, unit: 1, amount: +10.026, unit: 1, amount: +10.3781

Catalog code GSC 06643-00491, TYC 6643-491-1, 2MASS J10540438-2708426, RAVE J105404.4-270843, Gaia DR1 5457055429047625216, Gaia DR2 5457055433344881280

Constellation Hydra

Declination unit: www.wikidata.org, amount: -27.14516914941100

Declination component of proper motion unit: www.wikidata.org, amount: +1.160

Distance from earth unit: www.wikidata.org, amount: +973.4255

Effective temperature unit: www.wikidata.org, amount: +4859

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +1.0273

Radial velocity unit: www.wikidata.org, amount: -15.91

Right ascension unit: www.wikidata.org, amount: +163.51831197201920

Right ascension component of proper motion unit: www.wikidata.org, amount: -9.386

Surface gravity unit: www.wikidata.org, amount: +135

External References (2)

Gaia id 5457055433344881280

Simbad id TYC 6643-491-1

References

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

Direct Wikidata claims

[2] ↑ Q87090239 — instance of (P31): star. SIMBAD. wikidata.org.
[3] ↑ Q87090239 — constellation (P59): Hydra. wikidata.org.
[4] ↑ Q87090239 — catalog code (P528): GSC 06643-00491. SIMBAD. wikidata.org.
[5] ↑ Q87090239 — catalog code (P528): TYC 6643-491-1. SIMBAD. wikidata.org.
[6] ↑ Q87090239 — catalog code (P528): 2MASS J10540438-2708426. SIMBAD. wikidata.org.
[7] ↑ Q87090239 — catalog code (P528): RAVE J105404.4-270843. SIMBAD. wikidata.org.
[8] ↑ Q87090239 — catalog code (P528): Gaia DR1 5457055429047625216. SIMBAD. wikidata.org.
[9] ↑ Q87090239 — catalog code (P528): Gaia DR2 5457055433344881280. SIMBAD. wikidata.org.
[10] ↑ Q87090239 — apparent magnitude (P1215): {'unit': '1', 'amount': '+8.810'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[11] ↑ Q87090239 — apparent magnitude (P1215): {'unit': '1', 'amount': '+8.300'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[12] ↑ Q87090239 — apparent magnitude (P1215): {'unit': '1', 'amount': '+8.180'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[13] ↑ Q87090239 — apparent magnitude (P1215): {'unit': '1', 'amount': '+11.677'}. APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings. wikidata.org.
[14] ↑ Q87090239 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.656'}. APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings. wikidata.org.
[15] ↑ Q87090239 — apparent magnitude (P1215): {'unit': '1', 'amount': '+11.231'}. APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings. wikidata.org.
[16] ↑ Q87090239 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.380'}. APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings. wikidata.org.
[17] ↑ Q87090239 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.026'}. APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings. wikidata.org.
[18] ↑ Q87090239 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.3781'}. Gaia Data Release 2. wikidata.org.
[19] ↑ Q87090239 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.0273'}. Gaia Data Release 2. wikidata.org.
[20] ↑ Q87090239 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-15.91'}. Gaia Data Release 2. wikidata.org.
[21] ↑ Q87090239 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+973.4255'}. Gaia Data Release 2. wikidata.org.
[22] ↑ Q87090239 — SIMBAD ID (P3083): TYC 6643-491-1. wikidata.org.
[23] ↑ Q87090239 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+163.51831197201920'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q87090239 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-27.14516914941100'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q87090239 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.
[26] ↑ Q87090239 — effective temperature (P6879): {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+4859'}. The radial velocity experiment (RAVE): fourth data release. wikidata.org.

Class ancestry

[1] ↑ Q87090239 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). Q87090239. Retrieved May 7, 2026, from https://4ort.xyz/entity/q87090239

MLA “Q87090239.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q87090239.

BibTeX

@misc{4ortxyz_q87090239_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q87090239}}, year = {2026}, url = {https://4ort.xyz/entity/q87090239}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q87090239 — https://4ort.xyz/entity/q87090239 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q87090239 · Last refreshed: May 7, 2026