Q84122520

star in the constellation Hydra

Thing star Q84122520

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Q84122520

Summary

Q84122520 is a star^[1].

Key Facts

Q84122520's instance of is recorded as star^[2].
Q84122520's constellation is recorded as Hydra^[3].
Q84122520's catalog code is recorded as BD-20 3158^[4].
Q84122520's catalog code is recorded as CPD-20 4915^[5].
Q84122520's catalog code is recorded as GSC 06072-00209^[6].
Q84122520's catalog code is recorded as PPM 257562^[7].
Q84122520's catalog code is recorded as TYC 6072-209-1^[8].
Q84122520's catalog code is recorded as 2MASS J10214241-2134157^[9].
Q84122520's catalog code is recorded as RAVE J102142.4-213416^[10].
Q84122520's catalog code is recorded as Gaia DR1 5475667961882847232^[11].
Q84122520's catalog code is recorded as Gaia DR2 5475667966178631424^[12].
Q84122520's apparent magnitude is recorded as {'unit': '1', 'amount': '+9.516'}^[13].
Q84122520's apparent magnitude is recorded as {'unit': '1', 'amount': '+9.289'}^[14].
Q84122520's apparent magnitude is recorded as {'unit': '1', 'amount': '+9.207'}^[15].
Q84122520's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.957'}^[16].
Q84122520's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.451'}^[17].
Q84122520's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.716'}^[18].
Q84122520's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.364'}^[19].
Q84122520's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.285'}^[20].
Q84122520's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.3319'}^[21].
Q84122520's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+4.2347'}^[22].
Q84122520's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-16.71'}^[23].
Q84122520's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+236.1442'}^[24].
Q84122520's SIMBAD ID is recorded as BD-20 3158^[25].
Q84122520's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+155.42672970746380'}^[26].

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Quick Facts

Instance of star

Properties

Apparent magnitude unit: 1, amount: +9.516, unit: 1, amount: +9.289, unit: 1, amount: +9.207, unit: 1, amount: +10.957, unit: 1, amount: +10.451, unit: 1, amount: +10.716, unit: 1, amount: +10.364, unit: 1, amount: +10.285, unit: 1, amount: +10.3319

Catalog code BD-20 3158, CPD-20 4915, GSC 06072-00209, PPM 257562, TYC 6072-209-1, 2MASS J10214241-2134157, RAVE J102142.4-213416, Gaia DR1 5475667961882847232, Gaia DR2 5475667966178631424

Constellation Hydra

Declination unit: www.wikidata.org, amount: -21.57104600172940

Declination component of proper motion unit: www.wikidata.org, amount: -33.338

Distance from earth unit: www.wikidata.org, amount: +236.1442

Effective temperature unit: www.wikidata.org, amount: +5485

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +4.2347

Radial velocity unit: www.wikidata.org, amount: -16.71

Right ascension unit: www.wikidata.org, amount: +155.42672970746380

Right ascension component of proper motion unit: www.wikidata.org, amount: -12.487

Surface gravity unit: www.wikidata.org, amount: +1800

External References (2)

Gaia id 5475667966178631424

Simbad id BD-20 3158

References

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

Direct Wikidata claims

[2] ↑ Q84122520 — instance of (P31): star. SIMBAD. wikidata.org.
[3] ↑ Q84122520 — constellation (P59): Hydra. wikidata.org.
[4] ↑ Q84122520 — catalog code (P528): BD-20 3158. SIMBAD. wikidata.org.
[5] ↑ Q84122520 — catalog code (P528): CPD-20 4915. SIMBAD. wikidata.org.
[6] ↑ Q84122520 — catalog code (P528): GSC 06072-00209. SIMBAD. wikidata.org.
[7] ↑ Q84122520 — catalog code (P528): PPM 257562. SIMBAD. wikidata.org.
[8] ↑ Q84122520 — catalog code (P528): TYC 6072-209-1. SIMBAD. wikidata.org.
[9] ↑ Q84122520 — catalog code (P528): 2MASS J10214241-2134157. SIMBAD. wikidata.org.
[10] ↑ Q84122520 — catalog code (P528): RAVE J102142.4-213416. SIMBAD. wikidata.org.
[11] ↑ Q84122520 — catalog code (P528): Gaia DR1 5475667961882847232. SIMBAD. wikidata.org.
[12] ↑ Q84122520 — catalog code (P528): Gaia DR2 5475667966178631424. SIMBAD. wikidata.org.
[13] ↑ Q84122520 — apparent magnitude (P1215): {'unit': '1', 'amount': '+9.516'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[14] ↑ Q84122520 — apparent magnitude (P1215): {'unit': '1', 'amount': '+9.289'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[15] ↑ Q84122520 — apparent magnitude (P1215): {'unit': '1', 'amount': '+9.207'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[16] ↑ Q84122520 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.957'}. APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings. wikidata.org.
[17] ↑ Q84122520 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.451'}. APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings. wikidata.org.
[18] ↑ Q84122520 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.716'}. APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings. wikidata.org.
[19] ↑ Q84122520 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.364'}. APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings. wikidata.org.
[20] ↑ Q84122520 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.285'}. APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings. wikidata.org.
[21] ↑ Q84122520 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.3319'}. Gaia Data Release 2. wikidata.org.
[22] ↑ Q84122520 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+4.2347'}. Gaia Data Release 2. wikidata.org.
[23] ↑ Q84122520 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-16.71'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q84122520 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+236.1442'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q84122520 — SIMBAD ID (P3083): BD-20 3158. wikidata.org.
[26] ↑ Q84122520 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+155.42672970746380'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q84122520 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). Q84122520. Retrieved May 7, 2026, from https://4ort.xyz/entity/q84122520

MLA “Q84122520.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q84122520.

BibTeX

@misc{4ortxyz_q84122520_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q84122520}}, year = {2026}, url = {https://4ort.xyz/entity/q84122520}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q84122520 — https://4ort.xyz/entity/q84122520 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q84122520 · Last refreshed: May 7, 2026