David Helfand

Canadian university administrator
Person human Q5234877
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Summary

David Helfand was born on December 7, 1950[1]. He has worked as an astronomer[2] and university teacher[3]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (87 views/month, #7,297 of 1,000,298).[4]

Key Facts

  • Date of birth: January 1, 1950[5]
  • Country of citizenship: Canada[6]
  • Field of work: astrophysics[7], neutron star[8], supernova[9], nuclear star cluster[10]
  • Employer: Columbia University[11]
  • Doctoral advisor: Joseph Hooton Taylor[12]
  • Award received: Fellow of the Committee for Skeptical Inquiry[13]
  • Member of: American Astronomical Society[14], International Astronomical Union[15]
  • Sex or gender: male[16]
  • Doctoral student: Alexandre Réfrégier[17], Saeqa Vrtilek[18], John P. Hughes[19]
  • Commons category: David Helfand[20]
  • Family name: Helfand[21]
  • Given name: David[22]
  • Languages spoken, written or signed: English[23]
  • P14528: 26809[24]

Why It Matters

David Helfand is known by 8 alternative names across languages and contexts.[25]

FAQs

What did David Helfand do for work?

David Helfand worked as an astronomer[2] and university teacher[3].

What awards did David Helfand receive?

Honors received include Fellow of the Committee for Skeptical Inquiry[13].

References

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

Direct Wikidata claims

  1. [16] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  2. [6] ↑ . wikidata.org.
  3. [7] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  4. [8] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  5. [9] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  6. [10] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  7. [2] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  8. [3] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  9. [11] ↑ . Retrieved . wikidata.org.
  10. [13] ↑ . Retrieved . wikidata.org.
  11. [12] ↑ . wikidata.org.
  12. [17] ↑ . Astronomy Genealogy Project. wikidata.org.
  13. [18] ↑ . Astronomy Genealogy Project. wikidata.org.
  14. [19] ↑ . Astronomy Genealogy Project. wikidata.org.
  15. [20] ↑ . wikidata.org.
  16. [14] ↑ . Retrieved . wikidata.org.
  17. [15] ↑ . wikidata.org.
  18. [1] ↑ . Library of Congress Authorities. Retrieved . wikidata.org.
  19. [5] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  20. [21] ↑ . wikidata.org.
  21. [22] ↑ . wikidata.org.
  22. [23] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  23. [24] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [4] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [25] ↑ . 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). David Helfand. Retrieved October 11, 2026, from https://4ort.xyz/entity/david-helfand
MLA “David Helfand.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Oct. 2026, https://4ort.xyz/entity/david-helfand.
BibTeX @misc{4ortxyz_david-helfand_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{David Helfand}}, year = {2026}, url = {https://4ort.xyz/entity/david-helfand}, note = {Accessed: 2026-10-11}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): David Helfand — https://4ort.xyz/entity/david-helfand (retrieved 2026-10-11)

Canonical URL: https://4ort.xyz/entity/david-helfand · 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. 6d ago · Bargioni · 2026-10-06 view diff on Wikidata ↗
    Sitelink count → 2
    Wikipedia languages → ['commons', 'en']
    Claims rich → —
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/58040|batch #58040]]: add P1810 to P396"
  2. 19d ago · Epìdosis · 2026-09-23 view diff on Wikidata ↗
    Sbn author id → UBOV074904
    "/* wbcreateclaim-create:1| */ Sbn author id: UBOV074904, [[:toollabs:quickstatements/#/batch/275040|batch #275040]]"
  3. 9w ago · Printstream · 2026-08-09 view diff on Wikidata ↗
    Gnd id → 12045789X
    Doctoral student → Alexandre Réfrégier, Saeqa Vrtilek, John P. Hughes
    "/* wbcreateclaim-create:1| */ Gnd id: 12045789X, #quickstatements; #temporary_batch_1786220591756"
  4. 17w ago · Pigsonthewing · 2026-06-14 view diff on Wikidata ↗
    Imported from → —
    Dimensions author id → 010377035415.15
    Languages spoken, written or signed → English
    Isni → 0000000081745397
    + 33 other properties edited (see Wikidata diff for full list)
    "/* wbcreateclaim-create:1| */ P14528: 26809, [[:toollabs:quickstatements/#/batch/259666|batch #259666]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.