Q84222597

white dwarf in the constellation Hydra

Thing white_dwarf Q84222597

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Q84222597

Summary

Q84222597 is a white dwarf^[1].

Key Facts

Q84222597's instance of is recorded as white dwarf^[2].
Q84222597's constellation is recorded as Hydra^[3].
Q84222597's spectral class is recorded as DA^[4].
Q84222597's catalog code is recorded as NLTT 20031^[5].
Q84222597's catalog code is recorded as LSPM J0840+0247^[6].
Q84222597's catalog code is recorded as USNO-B1.0 0927-00217687^[7].
Q84222597's catalog code is recorded as SDSS J084052.72+024712.3^[8].
Q84222597's catalog code is recorded as SDSS J084052.73+024712.3^[9].
Q84222597's catalog code is recorded as WD 0838+029^[10].
Q84222597's catalog code is recorded as Gaia DR2 3079177262706260736^[11].
Q84222597's redshift is recorded as {'unit': '1', 'amount': '-0.00008'}^[12].
Q84222597's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.3'}^[13].
Q84222597's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.0'}^[14].
Q84222597's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.317'}^[15].
Q84222597's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.785'}^[16].
Q84222597's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.625'}^[17].
Q84222597's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.694'}^[18].
Q84222597's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.08'}^[19].
Q84222597's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.01'}^[20].
Q84222597's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.8'}^[21].
Q84222597's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.62'}^[22].
Q84222597's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.6396'}^[23].
Q84222597's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+7.9208'}^[24].
Q84222597's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-24'}^[25].
Q84222597's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+126.2499'}^[26].

Body

Definition and Type

Q84222597's instance of is recorded as white dwarf^[2].

⭐ Popularity Graph

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Quick Facts

Instance of white dwarf

Properties

Apparent magnitude unit: 1, amount: +18.3, unit: 1, amount: +18.0, unit: 1, amount: +19.317, unit: 1, amount: +18.785, unit: 1, amount: +18.625, unit: 1, amount: +18.694, unit: 1, amount: +18.08, unit: 1, amount: +18.01, unit: 1, amount: +17.8, unit: 1, amount: +18.62, unit: 1, amount: +18.6396

Catalog code NLTT 20031, LSPM J0840+0247, USNO-B1.0 0927-00217687, SDSS J084052.72+024712.3, SDSS J084052.73+024712.3, WD 0838+029, Gaia DR2 3079177262706260736

Constellation Hydra

Declination unit: www.wikidata.org, amount: +2.78682104072100

Declination component of proper motion unit: www.wikidata.org, amount: -201.804

Distance from earth unit: www.wikidata.org, amount: +126.2499

Effective temperature unit: www.wikidata.org, amount: +7245

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +7.9208

Radial velocity unit: www.wikidata.org, amount: -24

Redshift unit: 1, amount: -0.00008

Right ascension unit: www.wikidata.org, amount: +130.21969119599170

Right ascension component of proper motion unit: www.wikidata.org, amount: -29.517

Spectral class DA

Surface gravity unit: www.wikidata.org, amount: +66000000

External References (2)

Gaia id 3079177262706260736

Simbad id LP 545-40

References

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

Direct Wikidata claims

[2] ↑ Q84222597 — instance of (P31): white dwarf. SIMBAD. wikidata.org.
[3] ↑ Q84222597 — constellation (P59): Hydra. wikidata.org.
[4] ↑ Q84222597 — spectral class (P215): DA. A Catalog of Spectroscopically Confirmed White Dwarfs from the Sloan Digital Sky Survey Data Release 4. wikidata.org.
[5] ↑ Q84222597 — catalog code (P528): NLTT 20031. SIMBAD. wikidata.org.
[6] ↑ Q84222597 — catalog code (P528): LSPM J0840+0247. SIMBAD. wikidata.org.
[7] ↑ Q84222597 — catalog code (P528): USNO-B1.0 0927-00217687. SIMBAD. wikidata.org.
[8] ↑ Q84222597 — catalog code (P528): SDSS J084052.72+024712.3. SIMBAD. wikidata.org.
[9] ↑ Q84222597 — catalog code (P528): SDSS J084052.73+024712.3. SIMBAD. wikidata.org.
[10] ↑ Q84222597 — catalog code (P528): WD 0838+029. SIMBAD. wikidata.org.
[11] ↑ Q84222597 — catalog code (P528): Gaia DR2 3079177262706260736. SIMBAD. wikidata.org.
[12] ↑ Q84222597 — redshift (P1090): {'unit': '1', 'amount': '-0.00008'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[13] ↑ Q84222597 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.3'}. The USNO-B Catalog. wikidata.org.
[14] ↑ Q84222597 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.0'}. The USNO-B Catalog. wikidata.org.
[15] ↑ Q84222597 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.317'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[16] ↑ Q84222597 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.785'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[17] ↑ Q84222597 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.625'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[18] ↑ Q84222597 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.694'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[19] ↑ Q84222597 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.08'}. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[20] ↑ Q84222597 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.01'}. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[21] ↑ Q84222597 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.8'}. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[22] ↑ Q84222597 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.62'}. SDSS DR7 white dwarf catalog. wikidata.org.
[23] ↑ Q84222597 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.6396'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q84222597 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+7.9208'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q84222597 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-24'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[26] ↑ Q84222597 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+126.2499'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q84222597 is an instance of white dwarf (Q5871) [P31, primary]. Wikidata. wikidata.org.

📑 Cite this page

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APA 4ort.xyz Knowledge Graph. (2026). Q84222597. Retrieved May 7, 2026, from https://4ort.xyz/entity/q84222597

MLA “Q84222597.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q84222597.

BibTeX

@misc{4ortxyz_q84222597_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q84222597}}, year = {2026}, url = {https://4ort.xyz/entity/q84222597}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q84222597 — https://4ort.xyz/entity/q84222597 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q84222597 · Last refreshed: May 7, 2026