EU Ursae Majoris

blue object in the constellation Ursa Major

Thing blue_object Q89048677

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EU Ursae Majoris

Summary

EU Ursae Majoris is a blue object^[1].

Key Facts

EU Ursae Majoris's instance of is recorded as blue object^[2].
EU Ursae Majoris's instance of is recorded as Polar^[3].
EU Ursae Majoris's constellation is recorded as Ursa Major^[4].
EU Ursae Majoris's spectral class is recorded as DB+K^[5].
EU Ursae Majoris's catalog code is recorded as Ton 71^[6].
EU Ursae Majoris's catalog code is recorded as SDSS J114955.69+284507.3^[7].
EU Ursae Majoris's catalog code is recorded as 2RE J1149+284^[8].
EU Ursae Majoris's catalog code is recorded as 2RE J114955+284508^[9].
EU Ursae Majoris's catalog code is recorded as AAVSO 1144+29^[10].
EU Ursae Majoris's catalog code is recorded as RBS 1039^[11].
EU Ursae Majoris's catalog code is recorded as RE J1149+284^[12].
EU Ursae Majoris's catalog code is recorded as RE J114954+284512^[13].
EU Ursae Majoris's catalog code is recorded as RE J1149+28^[14].
EU Ursae Majoris's catalog code is recorded as US 3019^[15].
EU Ursae Majoris's catalog code is recorded as [FS2003] 0611^[16].
EU Ursae Majoris's catalog code is recorded as 2MASS J11495572+2845071^[17].
EU Ursae Majoris's catalog code is recorded as 1RXS J114955.5+284510^[18].
EU Ursae Majoris's catalog code is recorded as 2EUVE J1149+28.7^[19].
EU Ursae Majoris's catalog code is recorded as EUVE J1149+28.7^[20].
EU Ursae Majoris's catalog code is recorded as RX J1149.9+2844^[21].
EU Ursae Majoris's catalog code is recorded as RX J1149.9+2845^[22].
EU Ursae Majoris's catalog code is recorded as [ZEH2003] RX J1149.9+2845 2^[23].
EU Ursae Majoris's catalog code is recorded as 2XMM J114955.7+284507^[24].
EU Ursae Majoris's catalog code is recorded as SDSS J114955.70+284507.3^[25].
EU Ursae Majoris's catalog code is recorded as Gaia DR2 4019704731785215360^[26].

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Quick Facts

Instance of blue object, Polar

Properties

Apparent magnitude unit: 1, amount: +15.4, unit: 1, amount: +17.603, unit: 1, amount: +17.696, unit: 1, amount: +17.792, unit: 1, amount: +17.545, unit: 1, amount: +16.494, unit: 1, amount: +16.006, unit: 1, amount: +15.998, unit: 1, amount: +17.571, unit: 1, amount: +18.8595

Catalog code Ton 71, SDSS J114955.69+284507.3, 2RE J1149+284, 2RE J114955+284508, AAVSO 1144+29, RBS 1039, RE J1149+284, RE J114954+284512, RE J1149+28, US 3019, [FS2003] 0611, 2MASS J11495572+2845071, 1RXS J114955.5+284510, 2EUVE J1149+28.7, EUVE J1149+28.7, RX J1149.9+2844, RX J1149.9+2845, [ZEH2003] RX J1149.9+2845 2, 2XMM J114955.7+284507, SDSS J114955.70+284507.3, Gaia DR2 4019704731785215360, EU UMa

Constellation Ursa Major

Declination unit: www.wikidata.org, amount: +28.783, unit: www.wikidata.org, amount: +28.75202555253970

Declination component of proper motion unit: www.wikidata.org, amount: -7.492

Effective temperature unit: www.wikidata.org, amount: +4000

Epoch J2000.0

Imported from wholeness_audit_2026-05-02

Metallicity unit: 1, amount: +0.4

Parallax unit: www.wikidata.org, amount: +3.0226

Radial velocity unit: www.wikidata.org, amount: +150

Redshift unit: 1, amount: +0.00050

Right ascension unit: www.wikidata.org, amount: +177.500, unit: www.wikidata.org, amount: +177.48208823509130

Right ascension component of proper motion unit: www.wikidata.org, amount: -16.507

Spectral class DB+K

External References (3)

Gaia id 4019704731785215360

Google knowledge graph id /g/11kgzv41bk

Simbad id V* EU UMa

🏷️ Also known as

en EU Ursae Majoris ru EU Большой Медведицы

References

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

Direct Wikidata claims

[2] ↑ EU Ursae Majoris — instance of (P31): blue object. SIMBAD. wikidata.org.
[3] ↑ EU Ursae Majoris — instance of (P31): Polar. SIMBAD. wikidata.org.
[4] ↑ EU Ursae Majoris — constellation (P59): Ursa Major. VizieR. wikidata.org.
[5] ↑ EU Ursae Majoris — spectral class (P215): DB+K. White dwarf-main sequence binaries identified within SDSS DR7 and UKIDSS DR5. wikidata.org.
[6] ↑ EU Ursae Majoris — catalog code (P528): Ton 71. SIMBAD. wikidata.org.
[7] ↑ EU Ursae Majoris — catalog code (P528): SDSS J114955.69+284507.3. SIMBAD. wikidata.org.
[8] ↑ EU Ursae Majoris — catalog code (P528): 2RE J1149+284. SIMBAD. wikidata.org.
[9] ↑ EU Ursae Majoris — catalog code (P528): 2RE J114955+284508. SIMBAD. wikidata.org.
[10] ↑ EU Ursae Majoris — catalog code (P528): AAVSO 1144+29. SIMBAD. wikidata.org.
[11] ↑ EU Ursae Majoris — catalog code (P528): RBS 1039. SIMBAD. wikidata.org.
[12] ↑ EU Ursae Majoris — catalog code (P528): RE J1149+284. SIMBAD. wikidata.org.
[13] ↑ EU Ursae Majoris — catalog code (P528): RE J114954+284512. SIMBAD. wikidata.org.
[14] ↑ EU Ursae Majoris — catalog code (P528): RE J1149+28. SIMBAD. wikidata.org.
[15] ↑ EU Ursae Majoris — catalog code (P528): US 3019. SIMBAD. wikidata.org.
[16] ↑ EU Ursae Majoris — catalog code (P528): [FS2003] 0611. SIMBAD. wikidata.org.
[17] ↑ EU Ursae Majoris — catalog code (P528): 2MASS J11495572+2845071. SIMBAD. wikidata.org.
[18] ↑ EU Ursae Majoris — catalog code (P528): 1RXS J114955.5+284510. SIMBAD. wikidata.org.
[19] ↑ EU Ursae Majoris — catalog code (P528): 2EUVE J1149+28.7. SIMBAD. wikidata.org.
[20] ↑ EU Ursae Majoris — catalog code (P528): EUVE J1149+28.7. SIMBAD. wikidata.org.
[21] ↑ EU Ursae Majoris — catalog code (P528): RX J1149.9+2844. SIMBAD. wikidata.org.
[22] ↑ EU Ursae Majoris — catalog code (P528): RX J1149.9+2845. SIMBAD. wikidata.org.
[23] ↑ EU Ursae Majoris — catalog code (P528): [ZEH2003] RX J1149.9+2845 2. SIMBAD. wikidata.org.
[24] ↑ EU Ursae Majoris — catalog code (P528): 2XMM J114955.7+284507. SIMBAD. wikidata.org.
[25] ↑ EU Ursae Majoris — catalog code (P528): SDSS J114955.70+284507.3. SIMBAD. wikidata.org.
[26] ↑ EU Ursae Majoris — catalog code (P528): Gaia DR2 4019704731785215360. SIMBAD. wikidata.org.

Class ancestry

[1] ↑ EU Ursae Majoris is an instance of blue object (Q71798532) [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). EU Ursae Majoris. Retrieved May 3, 2026, from https://4ort.xyz/entity/eu-ursae-majoris

MLA “EU Ursae Majoris.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/eu-ursae-majoris.

BibTeX

@misc{4ortxyz_eu-ursae-majoris_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{EU Ursae Majoris}}, year = {2026}, url = {https://4ort.xyz/entity/eu-ursae-majoris}, note = {Accessed: 2026-05-03}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): EU Ursae Majoris — https://4ort.xyz/entity/eu-ursae-majoris (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/eu-ursae-majoris · Last refreshed: May 3, 2026