Home › Entities › astrophysical_x_ray_source › GRO J1655-40

GRO J1655-40

binary star
Place astrophysical_x_ray_source Q608673
Press Enter · cited answer in seconds

Summary

GRO J1655-40 is an astrophysical X-ray source[1]. It draws 390 Wikipedia views per month (astrophysical x ray source category, ranking #22 of 33).[2]

Key Facts

  • Instance of: nova[3], high-mass X-ray binary[4], low-mass X-ray binary[5], gamma-ray source[6], variable star[7]
  • Constellation: Scorpius[8]
  • Spectral class: F5IV[9], F3-6IV[10]
  • Commons category: GRO J1655-40[11]
  • Catalog code: V1033 Sco[12], INTREF 727[13], PBC J1653.9-3950[14], AAVSO 1647-39[15]
  • Apparent magnitude: 15.20[16], 14.2[17], 16.14[18]
  • Distance from Earth: 3.2 kiloparsec[19]
  • Right ascension: 253.5005708 degree[20]
  • Declination: -39.8458056 degree[21]
  • Epoch: J2000.0[22]

Why It Matters

GRO J1655-40 has Wikipedia articles in 7 language editions, a strong signal of global cultural recognition.[23] It is known by 7 alternative names across languages and contexts.[24]

References

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

Direct Wikidata claims

  1. [3] ↑ . SIMBAD. wikidata.org.
  2. [4] ↑ . Classification of X-ray sources in the XMM-Newton serendipitous source catalog. wikidata.org.
  3. [5] ↑ . SIMBAD. wikidata.org.
  4. [6] ↑ . SIMBAD. wikidata.org.
  5. [7] ↑ . SIMBAD. wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . SIMBAD. wikidata.org.
  8. [10] ↑ . Investigating ChaMPlane X-ray sources in the Galactic bulge with Magellan LDSS2 spectra. wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . SIMBAD. wikidata.org.
  11. [13] ↑ . SIMBAD. wikidata.org.
  12. [14] ↑ . SIMBAD. wikidata.org.
  13. [15] ↑ . SIMBAD. wikidata.org.
  14. [16] ↑ . A catalogue of low-mass X-ray binaries in the Galaxy, LMC, and SMC (Fourth edition). wikidata.org.
  15. [17] ↑ . A catalogue of low-mass X-ray binaries in the Galaxy, LMC, and SMC (Fourth edition). wikidata.org.
  16. [18] ↑ . Investigating ChaMPlane X-ray sources in the Galactic bulge with Magellan LDSS2 spectra. wikidata.org.
  17. [19] ↑ . The distances to Galactic low-mass X-ray binaries: consequences for black hole luminosities and kicks. wikidata.org.
  18. [20] ↑ . A catalogue of low-mass X-ray binaries in the Galaxy, LMC, and SMC (Fourth edition). wikidata.org.
  19. [21] ↑ . A catalogue of low-mass X-ray binaries in the Galaxy, LMC, and SMC (Fourth edition). wikidata.org.
  20. [22] ↑ . A catalogue of low-mass X-ray binaries in the Galaxy, LMC, and SMC (Fourth edition). wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [23] ↑ . Wikidata sitelinks. wikidata.org.
  3. [24] ↑ . Wikidata aliases. 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). GRO J1655-40. Retrieved October 16, 2026, from https://4ort.xyz/entity/gro-j1655-40
MLA “GRO J1655-40.” 4ort.xyz Knowledge Graph, 4ort.xyz, 16 Oct. 2026, https://4ort.xyz/entity/gro-j1655-40.
BibTeX @misc{4ortxyz_gro-j1655-40_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{GRO J1655-40}}, year = {2026}, url = {https://4ort.xyz/entity/gro-j1655-40}, note = {Accessed: 2026-10-16}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): GRO J1655-40 — https://4ort.xyz/entity/gro-j1655-40 (retrieved 2026-10-16)

Canonical URL: https://4ort.xyz/entity/gro-j1655-40 · Last refreshed:

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. 7d ago · Huntster · 2026-10-10 view diff on Wikidata ↗
    Wikipedia languages → ['ar', 'bg', 'commons', 'de', 'en', 'fa', 'fr', 'ru', 'sv', 'uk']
    Sitelink count → 10
    Instance of → astrophysical X-ray source, nova, high-mass X-ray binary +3
    Claims rich → —
    "/* wbsetclaim-update:2||1|2 */ Instance of: high-mass X-ray binary"
  2. 12w ago · Dirac · 2026-07-20 view diff on Wikidata ↗
    Aliases → —
    Distance from earth → {'unit': 'Q11929860', 'amount': '+3.2'}
    Constellation → Scorpius
    Instance of → astrophysical X-ray source, nova, high-mass X-ray binary +3
    + 7 other properties edited (see Wikidata diff for full list)
    "/* wbcreateclaim-create:1| */ Image: Microquasar GRO J1655-40.jpg, [[:toollabs:quickstatements/#/batch/261337|batch #261337]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.