Q92281781

RR Lyrae variable star in the constellation Aquarius

Thing rr_lyrae_variable Q92281781

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Q92281781

Summary

Q92281781 is a RR Lyrae variable^[1].

Key Facts

Q92281781's instance of is recorded as RR Lyrae variable^[2].
Q92281781's constellation is recorded as Aquarius^[3].
Q92281781 is part of Messier 2^[4].
Q92281781's catalog code is recorded as Cl* NGC 7089 SAN 12^[5].
Q92281781's catalog code is recorded as Cl* NGC 7089 SAW V20^[6].
Q92281781's catalog code is recorded as UCAC2 31606090^[7].
Q92281781's catalog code is recorded as 2MASS J21335309-0047568^[8].
Q92281781's catalog code is recorded as SDSS J213353.08-004756.7^[9].
Q92281781's catalog code is recorded as [SIG2010] 2421108^[10].
Q92281781's catalog code is recorded as CRTS J213353.0-004758^[11].
Q92281781's catalog code is recorded as Gaia DR2 2686846809263847296^[12].
Q92281781's type of variable star is recorded as RR Lyrae variables with nearly symmetric light curves^[13].
Q92281781's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.274'}^[14].
Q92281781's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.069'}^[15].
Q92281781's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.372'}^[16].
Q92281781's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.380'}^[17].
Q92281781's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.112'}^[18].
Q92281781's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.106'}^[19].
Q92281781's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.114'}^[20].
Q92281781's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.146'}^[21].
Q92281781's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.324'}^[22].
Q92281781's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.251'}^[23].
Q92281781's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.0065'}^[24].
Q92281781's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+0.0102'}^[25].
Q92281781's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-5.0'}^[26].

Body

Definition and Type

Q92281781's instance of is recorded as RR Lyrae variable^[2].

Use and Application

Q92281781 is part of Messier 2^[4].

⭐ Popularity Graph

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Quick Facts

Instance of RR Lyrae variable

Part of Messier 2

Properties

Apparent magnitude unit: 1, amount: +16.274, unit: 1, amount: +16.069, unit: 1, amount: +15.372, unit: 1, amount: +17.380, unit: 1, amount: +16.112, unit: 1, amount: +16.106, unit: 1, amount: +16.114, unit: 1, amount: +16.146, unit: 1, amount: +15.324, unit: 1, amount: +15.251, unit: 1, amount: +16.0065

Catalog code Cl* NGC 7089 SAN 12, Cl* NGC 7089 SAW V20, UCAC2 31606090, 2MASS J21335309-0047568, SDSS J213353.08-004756.7, [SIG2010] 2421108, CRTS J213353.0-004758, Gaia DR2 2686846809263847296

Constellation Aquarius

Declination unit: www.wikidata.org, amount: -0.79908861257740

Declination component of proper motion unit: www.wikidata.org, amount: -2.316

Distance from earth unit: www.wikidata.org, amount: +11.06

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +0.0102

Radial velocity unit: www.wikidata.org, amount: -5.0

Right ascension unit: www.wikidata.org, amount: +323.47116409850900

Right ascension component of proper motion unit: www.wikidata.org, amount: +3.806

Type of variable star RR Lyrae variables with nearly symmetric light curves

External References (2)

Gaia id 2686846809263847296

Simbad id Cl* NGC 7089 SAW V20

References

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

Direct Wikidata claims

[2] ↑ Q92281781 — instance of (P31): RR Lyrae variable. SIMBAD. wikidata.org.
[3] ↑ Q92281781 — constellation (P59): Aquarius. wikidata.org.
[4] ↑ Q92281781 — part of (P361): Messier 2. wikidata.org.
[5] ↑ Q92281781 — catalog code (P528): Cl* NGC 7089 SAN 12. SIMBAD. wikidata.org.
[6] ↑ Q92281781 — catalog code (P528): Cl* NGC 7089 SAW V20. SIMBAD. wikidata.org.
[7] ↑ Q92281781 — catalog code (P528): UCAC2 31606090. SIMBAD. wikidata.org.
[8] ↑ Q92281781 — catalog code (P528): 2MASS J21335309-0047568. SIMBAD. wikidata.org.
[9] ↑ Q92281781 — catalog code (P528): SDSS J213353.08-004756.7. SIMBAD. wikidata.org.
[10] ↑ Q92281781 — catalog code (P528): [SIG2010] 2421108. SIMBAD. wikidata.org.
[11] ↑ Q92281781 — catalog code (P528): CRTS J213353.0-004758. SIMBAD. wikidata.org.
[12] ↑ Q92281781 — catalog code (P528): Gaia DR2 2686846809263847296. SIMBAD. wikidata.org.
[13] ↑ Q92281781 — type of variable star (P881): RR Lyrae variables with nearly symmetric light curves. BV photometry of RR Lyrae variables in the globular cluster M2 (NGC 7089). wikidata.org.
[14] ↑ Q92281781 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.274'}. BV photometry of RR Lyrae variables in the globular cluster M2 (NGC 7089). wikidata.org.
[15] ↑ Q92281781 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.069'}. BV photometry of RR Lyrae variables in the globular cluster M2 (NGC 7089). wikidata.org.
[16] ↑ Q92281781 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.372'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[17] ↑ Q92281781 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.380'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[18] ↑ Q92281781 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.112'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[19] ↑ Q92281781 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.106'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[20] ↑ Q92281781 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.114'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[21] ↑ Q92281781 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.146'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[22] ↑ Q92281781 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.324'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[23] ↑ Q92281781 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.251'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[24] ↑ Q92281781 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.0065'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q92281781 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+0.0102'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q92281781 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-5.0'}. The Milky Way's circular velocity curve to 60 kpc and an estimate of the dark matter halo mass from the kinematics of ~2400 SDSS blue horizontal-branch stars. wikidata.org.

Class ancestry

[1] ↑ Q92281781 is an instance of RR Lyrae variable (Q726242) [P31, primary]. Wikidata. wikidata.org.

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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). Q92281781. Retrieved May 7, 2026, from https://4ort.xyz/entity/q92281781

MLA “Q92281781.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q92281781.

BibTeX

@misc{4ortxyz_q92281781_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q92281781}}, year = {2026}, url = {https://4ort.xyz/entity/q92281781}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q92281781 — https://4ort.xyz/entity/q92281781 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q92281781 · Last refreshed: May 7, 2026