Q81853728

Thing t_tauri_type_star Q81853728

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Q81853728

Summary

Q81853728 is a T Tauri-type star^[1].

Key Facts

Q81853728's instance of is recorded as T Tauri-type star^[2].
Q81853728's constellation is recorded as Scorpius^[3].
Q81853728's spectral class is recorded as K5^[4].
Q81853728's part of is recorded as Upper Scorpius^[5].
Q81853728's part of is recorded as NAME Upper Scorpius A^[6].
Q81853728's catalog code is recorded as [KKL2000b] 88^[7].
Q81853728's catalog code is recorded as 2MASS J16035767-2031055^[8].
Q81853728's catalog code is recorded as [KKL2000b] RX J1603.9-2031A^[9].
Q81853728's catalog code is recorded as [M81] I-489^[10].
Q81853728's catalog code is recorded as [PZ99] J160357.6-203105^[11].
Q81853728's catalog code is recorded as [PBB2002] USco J160357.6-203105^[12].
Q81853728's catalog code is recorded as RX J1603.9-2031A^[13].
Q81853728's catalog code is recorded as EPIC 204864076^[14].
Q81853728's catalog code is recorded as Gaia DR2 6244083039015457664^[15].
Q81853728's type of variable star is recorded as rotating variable star^[16].
Q81853728's apparent magnitude is recorded as {'unit': '1', 'amount': '+9.608'}^[17].
Q81853728's apparent magnitude is recorded as {'unit': '1', 'amount': '+8.773'}^[18].
Q81853728's apparent magnitude is recorded as {'unit': '1', 'amount': '+8.371'}^[19].
Q81853728's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.4'}^[20].
Q81853728's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.92'}^[21].
Q81853728's apparent magnitude is recorded as {'unit': '1', 'amount': '+11.73'}^[22].
Q81853728's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.0780'}^[23].
Q81853728's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+7.0137'}^[24].
Q81853728's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-5.81'}^[25].
Q81853728's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+142.578'}^[26].

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Quick Facts

Instance of T Tauri-type star

Part of Upper Scorpius, NAME Upper Scorpius A

Properties

Apparent magnitude unit: 1, amount: +9.608, unit: 1, amount: +8.773, unit: 1, amount: +8.371, unit: 1, amount: +13.4, unit: 1, amount: +10.92, unit: 1, amount: +11.73, unit: 1, amount: +12.0780

Catalog code [KKL2000b] 88, 2MASS J16035767-2031055, [KKL2000b] RX J1603.9-2031A, [M81] I-489, [PZ99] J160357.6-203105, [PBB2002] USco J160357.6-203105, RX J1603.9-2031A, EPIC 204864076, Gaia DR2 6244083039015457664

Constellation Scorpius

Declination unit: www.wikidata.org, amount: -20.51822323362190

Declination component of proper motion unit: www.wikidata.org, amount: -22.904

Distance from earth unit: www.wikidata.org, amount: +142.578, unit: www.wikidata.org, amount: +142.5781

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +7.0137

Radial velocity unit: www.wikidata.org, amount: -5.81

Right ascension unit: www.wikidata.org, amount: +240.99029666171010

Right ascension component of proper motion unit: www.wikidata.org, amount: -11.603

Spectral class K5

Stellar rotational velocity unit: www.wikidata.org, amount: +6.37

Type of variable star rotating variable star

External References (2)

Gaia id 6244083039015457664

Simbad id RX J1603.9-2031

References

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

Direct Wikidata claims

[2] ↑ Q81853728 — instance of (P31): T Tauri-type star. SIMBAD. wikidata.org.
[3] ↑ Q81853728 — constellation (P59): Scorpius. wikidata.org.
[4] ↑ Q81853728 — spectral class (P215): K5. Multiplicity of X-ray selected T Tauri stars in the Scorpius-Centaurus OB association. wikidata.org.
[5] ↑ Q81853728 — part of (P361): Upper Scorpius. SIMBAD. wikidata.org.
[6] ↑ Q81853728 — part of (P361): NAME Upper Scorpius A. SIMBAD. wikidata.org.
[7] ↑ Q81853728 — catalog code (P528): [KKL2000b] 88. SIMBAD. wikidata.org.
[8] ↑ Q81853728 — catalog code (P528): 2MASS J16035767-2031055. SIMBAD. wikidata.org.
[9] ↑ Q81853728 — catalog code (P528): [KKL2000b] RX J1603.9-2031A. SIMBAD. wikidata.org.
[10] ↑ Q81853728 — catalog code (P528): [M81] I-489. SIMBAD. wikidata.org.
[11] ↑ Q81853728 — catalog code (P528): [PZ99] J160357.6-203105. SIMBAD. wikidata.org.
[12] ↑ Q81853728 — catalog code (P528): [PBB2002] USco J160357.6-203105. SIMBAD. wikidata.org.
[13] ↑ Q81853728 — catalog code (P528): RX J1603.9-2031A. SIMBAD. wikidata.org.
[14] ↑ Q81853728 — catalog code (P528): EPIC 204864076. SIMBAD. wikidata.org.
[15] ↑ Q81853728 — catalog code (P528): Gaia DR2 6244083039015457664. SIMBAD. wikidata.org.
[16] ↑ Q81853728 — type of variable star (P881): rotating variable star. Rotation of Low-mass Stars in Upper Scorpius and ρ Ophiuchus with K2. wikidata.org.
[17] ↑ Q81853728 — apparent magnitude (P1215): {'unit': '1', 'amount': '+9.608'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[18] ↑ Q81853728 — apparent magnitude (P1215): {'unit': '1', 'amount': '+8.773'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[19] ↑ Q81853728 — apparent magnitude (P1215): {'unit': '1', 'amount': '+8.371'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[20] ↑ Q81853728 — apparent magnitude (P1215): {'unit': '1', 'amount': '+13.4'}. The History of Low-Mass Star Formation in the Upper Scorpius OB Association. wikidata.org.
[21] ↑ Q81853728 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.92'}. The History of Low-Mass Star Formation in the Upper Scorpius OB Association. wikidata.org.
[22] ↑ Q81853728 — apparent magnitude (P1215): {'unit': '1', 'amount': '+11.73'}. The History of Low-Mass Star Formation in the Upper Scorpius OB Association. wikidata.org.
[23] ↑ Q81853728 — apparent magnitude (P1215): {'unit': '1', 'amount': '+12.0780'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q81853728 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+7.0137'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q81853728 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-5.81'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q81853728 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+142.578'}. Gaia Data Release 2. Summary of the contents and survey properties. wikidata.org.

Class ancestry

[1] ↑ Q81853728 is an instance of T Tauri-type star (Q6232) [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). Q81853728. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81853728

MLA “Q81853728.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81853728.

BibTeX

@misc{4ortxyz_q81853728_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81853728}}, year = {2026}, url = {https://4ort.xyz/entity/q81853728}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81853728 — https://4ort.xyz/entity/q81853728 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81853728 · Last refreshed: May 7, 2026