Q77830591

hot subdwarf star in the constellation Sextans

Thing hot_subdwarf_star Q77830591

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Q77830591

Summary

Q77830591 is a hot subdwarf star^[1].

Key Facts

Q77830591's instance of is recorded as hot subdwarf star^[2].
Q77830591's constellation is recorded as Sextans^[3].
Q77830591's spectral class is recorded as sd^[4].
Q77830591's catalog code is recorded as GALEX J100020.0-003413^[5].
Q77830591's catalog code is recorded as SDSS J100019.99-003413.4^[6].
Q77830591's catalog code is recorded as SDSS J100019.98-003413.3^[7].
Q77830591's catalog code is recorded as LAMOST J100019.99-003413.3^[8].
Q77830591's catalog code is recorded as USNO-B1.0 0894-00189204^[9].
Q77830591's catalog code is recorded as SDSS J100019.98-003413.4^[10].
Q77830591's catalog code is recorded as Gaia DR2 3833217389231778944^[11].
Q77830591's redshift is recorded as {'unit': '1', 'amount': '+0.00030'}^[12].
Q77830591's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.73'}^[13].
Q77830591's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.053'}^[14].
Q77830591's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.483'}^[15].
Q77830591's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.019'}^[16].
Q77830591's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.372'}^[17].
Q77830591's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.45'}^[18].
Q77830591's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.6'}^[19].
Q77830591's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.3'}^[20].
Q77830591's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.8'}^[21].
Q77830591's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.8029'}^[22].
Q77830591's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+90'}^[23].
Q77830591's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+150.08327579381960'}^[24].
Q77830591's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-0.57037508108060'}^[25].
Q77830591's epoch is recorded as J2000.0^[26].

Body

Definition and Type

Q77830591's instance of is recorded as hot subdwarf star^[2].

⭐ Popularity Graph

0/100 established

Quick Facts

Instance of hot subdwarf star

Properties

Apparent magnitude unit: 1, amount: +18.73, unit: 1, amount: +17.053, unit: 1, amount: +17.483, unit: 1, amount: +18.019, unit: 1, amount: +18.372, unit: 1, amount: +18.45, unit: 1, amount: +18.6, unit: 1, amount: +17.3, unit: 1, amount: +17.8, unit: 1, amount: +17.8029

Catalog code GALEX J100020.0-003413, SDSS J100019.99-003413.4, SDSS J100019.98-003413.3, LAMOST J100019.99-003413.3, USNO-B1.0 0894-00189204, SDSS J100019.98-003413.4, Gaia DR2 3833217389231778944

Constellation Sextans

Declination unit: www.wikidata.org, amount: -0.57037508108060

Declination component of proper motion unit: www.wikidata.org, amount: -5.203

Effective temperature unit: www.wikidata.org, amount: +70588

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Radial velocity unit: www.wikidata.org, amount: +90

Redshift unit: 1, amount: +0.00030

Right ascension unit: www.wikidata.org, amount: +150.08327579381960

Right ascension component of proper motion unit: www.wikidata.org, amount: -6.193

Spectral class sd

Surface gravity unit: www.wikidata.org, amount: +537000

External References (2)

Gaia id 3833217389231778944

Simbad id GALEX J100020.0-003413

References

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

Direct Wikidata claims

[2] ↑ Q77830591 — instance of (P31): hot subdwarf star. SIMBAD. wikidata.org.
[3] ↑ Q77830591 — constellation (P59): Sextans. wikidata.org.
[4] ↑ Q77830591 — spectral class (P215): sd. White dwarfs identified in LAMOST DR 2. wikidata.org.
[5] ↑ Q77830591 — catalog code (P528): GALEX J100020.0-003413. SIMBAD. wikidata.org.
[6] ↑ Q77830591 — catalog code (P528): SDSS J100019.99-003413.4. SIMBAD. wikidata.org.
[7] ↑ Q77830591 — catalog code (P528): SDSS J100019.98-003413.3. SIMBAD. wikidata.org.
[8] ↑ Q77830591 — catalog code (P528): LAMOST J100019.99-003413.3. SIMBAD. wikidata.org.
[9] ↑ Q77830591 — catalog code (P528): USNO-B1.0 0894-00189204. SIMBAD. wikidata.org.
[10] ↑ Q77830591 — catalog code (P528): SDSS J100019.98-003413.4. SIMBAD. wikidata.org.
[11] ↑ Q77830591 — catalog code (P528): Gaia DR2 3833217389231778944. SIMBAD. wikidata.org.
[12] ↑ Q77830591 — redshift (P1090): {'unit': '1', 'amount': '+0.00030'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[13] ↑ Q77830591 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.73'}. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[14] ↑ Q77830591 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.053'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[15] ↑ Q77830591 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.483'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[16] ↑ Q77830591 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.019'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[17] ↑ Q77830591 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.372'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[18] ↑ Q77830591 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.45'}. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[19] ↑ Q77830591 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.6'}. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[20] ↑ Q77830591 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.3'}. The USNO-B Catalog. wikidata.org.
[21] ↑ Q77830591 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.8'}. The USNO-B Catalog. wikidata.org.
[22] ↑ Q77830591 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.8029'}. Gaia Data Release 2. wikidata.org.
[23] ↑ Q77830591 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+90'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[24] ↑ Q77830591 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+150.08327579381960'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q77830591 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-0.57037508108060'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q77830591 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q77830591 is an instance of hot subdwarf star (Q54231557) [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). Q77830591. Retrieved May 7, 2026, from https://4ort.xyz/entity/q77830591

MLA “Q77830591.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q77830591.

BibTeX

@misc{4ortxyz_q77830591_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q77830591}}, year = {2026}, url = {https://4ort.xyz/entity/q77830591}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q77830591 — https://4ort.xyz/entity/q77830591 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q77830591 · Last refreshed: May 7, 2026