HD 21856

star in the constellation Perseus

Thing suspected_variable Q10849560

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HD 21856

Summary

HD 21856 is a suspected variable^[1].

Key Facts

HD 21856's instance of is recorded as suspected variable^[2].
HD 21856's constellation is recorded as Perseus^[3].
HD 21856's spectral class is recorded as B1V^[4].
HD 21856's catalog code is recorded as HD 21856^[5].
HD 21856's catalog code is recorded as ALS 14586^[6].
HD 21856's catalog code is recorded as FK5 1098^[7].
HD 21856's catalog code is recorded as GCRV 1951^[8].
HD 21856's catalog code is recorded as GSC 02350-02031^[9].
HD 21856's catalog code is recorded as HIC 16518^[10].
HD 21856's catalog code is recorded as HIP 16518^[11].
HD 21856's catalog code is recorded as HR 1074^[12].
HD 21856's catalog code is recorded as 2MASS J03324001+3527422^[13].
HD 21856's catalog code is recorded as N30 721^[14].
HD 21856's catalog code is recorded as PMC 90-93 727^[15].
HD 21856's catalog code is recorded as PPM 68561^[16].
HD 21856's catalog code is recorded as ROT 525^[17].
HD 21856's catalog code is recorded as SAO 56531^[18].
HD 21856's catalog code is recorded as SRS 31098^[19].
HD 21856's catalog code is recorded as TD1 2274^[20].
HD 21856's catalog code is recorded as UBV 3382^[21].
HD 21856's catalog code is recorded as UBV M 9560^[22].
HD 21856's catalog code is recorded as uvby98 100021856^[23].
HD 21856's catalog code is recorded as YPAC 10^[24].
HD 21856's catalog code is recorded as [KCS2016] J033240.02+352742.2^[25].
HD 21856's catalog code is recorded as AG+35 358^[26].

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Quick Facts

Instance of suspected variable

Properties

Apparent magnitude unit: 1, amount: +4.96, unit: 1, amount: +5.807, unit: 1, amount: +5.900, unit: 1, amount: +5.8644, unit: 1, amount: +6.010, unit: 1, amount: +6.095, unit: 1, amount: +6.125

Catalog code HD 21856, ALS 14586, FK5 1098, GCRV 1951, GSC 02350-02031, HIC 16518, HIP 16518, HR 1074, 2MASS J03324001+3527422, N30 721, PMC 90-93 727, PPM 68561, ROT 525, SAO 56531, SRS 31098, TD1 2274, UBV 3382, UBV M 9560, uvby98 100021856, YPAC 10, [KCS2016] J033240.02+352742.2, AG+35 358, BD+34 674, TYC 2350-2031-1, WEB 3156, Gaia DR2 221980716066283136

Constellation Perseus

Declination unit: www.wikidata.org, amount: +35.46172549922610

Declination component of proper motion unit: www.wikidata.org, amount: +1.400

Distance from earth unit: www.wikidata.org, amount: +465.4843

Effective temperature unit: www.wikidata.org, amount: +23989

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +2.1483

Radial velocity unit: www.wikidata.org, amount: +37.8, unit: www.wikidata.org, amount: +26.3

Right ascension unit: www.wikidata.org, amount: +53.16672912788370

Right ascension component of proper motion unit: www.wikidata.org, amount: -8.862

Spectral class B1V

Stellar rotational velocity unit: www.wikidata.org, amount: +87

Surface gravity unit: www.wikidata.org, amount: +9500, unit: www.wikidata.org, amount: +9660

External References (3)

Gaia id 221980716066283136

Google knowledge graph id /g/119pgb01p

Simbad id HD 21856

References

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

Direct Wikidata claims

[2] ↑ Q10849560 — instance of (P31): suspected variable. New Catalogue of Suspected Variable Stars. wikidata.org.
[3] ↑ Q10849560 — constellation (P59): Perseus. VizieR. vizier.u-strasbg.fr. Provenance: wikidata.org.
[4] ↑ Q10849560 — spectral class (P215): B1V. The kinematics of the Gould belt: an expanding group ?. wikidata.org.
[5] ↑ Q10849560 — catalog code (P528): HD 21856. SIMBAD. wikidata.org.
[6] ↑ Q10849560 — catalog code (P528): ALS 14586. SIMBAD. wikidata.org.
[7] ↑ Q10849560 — catalog code (P528): FK5 1098. SIMBAD. wikidata.org.
[8] ↑ Q10849560 — catalog code (P528): GCRV 1951. SIMBAD. wikidata.org.
[9] ↑ Q10849560 — catalog code (P528): GSC 02350-02031. SIMBAD. wikidata.org.
[10] ↑ Q10849560 — catalog code (P528): HIC 16518. SIMBAD. wikidata.org.
[11] ↑ Q10849560 — catalog code (P528): HIP 16518. SIMBAD. wikidata.org.
[12] ↑ Q10849560 — catalog code (P528): HR 1074. SIMBAD. wikidata.org.
[13] ↑ Q10849560 — catalog code (P528): 2MASS J03324001+3527422. SIMBAD. wikidata.org.
[14] ↑ Q10849560 — catalog code (P528): N30 721. SIMBAD. wikidata.org.
[15] ↑ Q10849560 — catalog code (P528): PMC 90-93 727. SIMBAD. wikidata.org.
[16] ↑ Q10849560 — catalog code (P528): PPM 68561. SIMBAD. wikidata.org.
[17] ↑ Q10849560 — catalog code (P528): ROT 525. SIMBAD. wikidata.org.
[18] ↑ Q10849560 — catalog code (P528): SAO 56531. SIMBAD. wikidata.org.
[19] ↑ Q10849560 — catalog code (P528): SRS 31098. SIMBAD. wikidata.org.
[20] ↑ Q10849560 — catalog code (P528): TD1 2274. SIMBAD. wikidata.org.
[21] ↑ Q10849560 — catalog code (P528): UBV 3382. SIMBAD. wikidata.org.
[22] ↑ Q10849560 — catalog code (P528): UBV M 9560. SIMBAD. wikidata.org.
[23] ↑ Q10849560 — catalog code (P528): uvby98 100021856. SIMBAD. wikidata.org.
[24] ↑ Q10849560 — catalog code (P528): YPAC 10. SIMBAD. wikidata.org.
[25] ↑ Q10849560 — catalog code (P528): [KCS2016] J033240.02+352742.2. SIMBAD. wikidata.org.
[26] ↑ Q10849560 — catalog code (P528): AG+35 358. SIMBAD. wikidata.org.

Class ancestry

[1] ↑ Q10849560 is an instance of suspected variable (Q66521853) [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). HD 21856. Retrieved May 7, 2026, from https://4ort.xyz/entity/q10849560

MLA “HD 21856.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q10849560.

BibTeX

@misc{4ortxyz_q10849560_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{HD 21856}}, year = {2026}, url = {https://4ort.xyz/entity/q10849560}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): HD 21856 — https://4ort.xyz/entity/q10849560 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q10849560 · Last refreshed: May 7, 2026