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Trumpler 3

open cluster in the constellation Cassiopeia
Place open_cluster Q17036625
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Trumpler 3

Summary

Trumpler 3 is an open cluster[1]. It is known by 3 alternative names across languages and contexts.[2]

Key Facts

  • Trumpler 3's instance of is recorded as open cluster[3].
  • Trumpler 3's constellation is recorded as Cassiopeia[4].
  • Trumpler 3's Commons category is recorded as Trumpler 3[5].
  • Trumpler 3's catalog code is recorded as C 0307+630[6].
  • Trumpler 3's catalog code is recorded as [KPS2012] MWSC 0262[7].
  • Trumpler 3's catalog code is recorded as Trumpler 3[8].
  • Trumpler 3's apparent magnitude is recorded as {'unit': '1', 'amount': '+7.0'}[9].
  • Trumpler 3's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-8.6'}[10].
  • Trumpler 3's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+450'}[11].
  • Trumpler 3's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+47.9500'}[12].
  • Trumpler 3's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+63.2500'}[13].
  • Trumpler 3's epoch is recorded as J2000.0[14].
  • Trumpler 3's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-0.70'}[15].
  • Trumpler 3's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-2.88'}[16].

Body

Designation and Status

Trumpler 3's instance of is recorded as open cluster[3].

History and Context

Catalog codes include C 0307+630[6], [KPS2012] MWSC 0262[7], and Trumpler 3[8].

Why It Matters

Trumpler 3 is known by 3 alternative names across languages and contexts.[2]

References

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

Direct Wikidata claims

  1. [3] ↑ . SIMBAD. wikidata.org.
  2. [4] ↑ . VizieR. wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . SIMBAD. wikidata.org.
  5. [7] ↑ . SIMBAD. wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . SIMBAD. wikidata.org.
  8. [10] ↑ . The orbits of open clusters in the Galaxy. wikidata.org.
  9. [11] ↑ . Astrophysical parameters of Galactic open clusters. wikidata.org.
  10. [12] ↑ . The orbits of open clusters in the Galaxy. wikidata.org.
  11. [13] ↑ . The orbits of open clusters in the Galaxy. wikidata.org.
  12. [14] ↑ . The orbits of open clusters in the Galaxy. wikidata.org.
  13. [15] ↑ . Proper motions of the optically visible open clusters based on the UCAC4 catalog. wikidata.org.
  14. [16] ↑ . Proper motions of the optically visible open clusters based on the UCAC4 catalog. wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata aliases. wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). Trumpler 3. Retrieved May 3, 2026, from https://4ort.xyz/entity/trumpler-3
MLA “Trumpler 3.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/trumpler-3.
BibTeX @misc{4ortxyz_trumpler-3_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Trumpler 3}}, year = {2026}, url = {https://4ort.xyz/entity/trumpler-3}, note = {Accessed: 2026-05-03}}
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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 5w ago · Abdullah1099 · 2026-07-30 view diff on Wikidata ↗
    Wikidata description → open cluster in the constellation Cassiopeia
    Catalog code → C 0307+630, [KPS2012] MWSC 0262, Trumpler 3
    Instance of → open cluster
    Distance from earth → {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount':
    + 13 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P18]]: NASA Finds Young Stars Dim in X-rays Surprisingly Quickly (Trumpler 3).jpg"
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