Cave Nebula
type: Thing
alternate name: Sh2-155
alternate name: Caldwell 9
alternate name: C 9
description: H II region in the constellation Cepheus
additional property: PropertyValue
  property ID: P18
  value: Cave Nebula.jpg
additional property: PropertyValue
  property ID: P31
  value: H II region
additional property: PropertyValue
  property ID: P59
  value: Cepheus
additional property: PropertyValue
  property ID: P138
  value: cave
additional property: PropertyValue
  property ID: P361
  value: Orion Arm
additional property: PropertyValue
  property ID: P373
  value: Cave Nebula
additional property: PropertyValue
  property ID: P528
  value: LBN 110.11+02.44
additional property: PropertyValue
  property ID: P528
  value: LBN 529
additional property: PropertyValue
  property ID: P528
  value: SH 2-155
additional property: PropertyValue
  property ID: P646
  value: /m/03cgjl2
additional property: PropertyValue
  property ID: P1215
  value: +7.7
additional property: PropertyValue
  property ID: P2583
  value: +0.84
additional property: PropertyValue
  property ID: P3083
  value: LBN 110.11+02.44
additional property: PropertyValue
  property ID: P6257
  value: +344.2746
additional property: PropertyValue
  property ID: P6258
  value: +62.6359
additional property: PropertyValue
  property ID: P6259
  value: J2000.0
confidence:
  popularity graph score:
    score: 0.021
    score pct: 2
    tier: established
    components:
      sitelinks: 25
      sitelinks norm: 0.059
      unique citations: 4
      unique citations norm: 0.002
      monthly pageviews: 0
      monthly pageviews norm: 0.0
  sitelinks: 25
  unique citations: 4
  monthly pageviews: 0
  yearly pageviews: 138
  pageview trend:
    m: 2026-06
    v: 84
  pageview trend:
    m: 2026-05
    v: 17
  pageview trend:
    m: 2026-05
    v: 7
  pageview trend:
    m: 2026-05
    v: 3
  pageview trend:
    m: 2026-04
    v: 21
  pageview trend:
    m: 2026-04
    v: 5
  pageview trend:
    m: 2026-04
    v: 1
  popularity:
    sitelinks: 25
    max: 423
    pct: 5.9
    rank label: top 10%
  tier: established
claims:
  P18:
    value: Cave Nebula.jpg
    source count: 0
    confidence: 0.0
  P31:
    value: Q11282
    source count: 1
    confidence: 0.2
    value label: H II region
  P59:
    value: Q10468
    source count: 0
    confidence: 0.0
    value label: Cepheus
  P138:
    value: Q35509
    source count: 0
    confidence: 0.0
    value label: cave
  P361:
    value: Q33187
    source count: 0
    confidence: 0.0
    value label: Orion Arm
  P373:
    value: Cave Nebula
    source count: 1
    confidence: 0.2
  P528:
    value: LBN 110.11+02.44
    source count: 1
    confidence: 0.2
  P528:
    value: LBN 529
    source count: 1
    confidence: 0.2
  P528:
    value: SH 2-155
    source count: 1
    confidence: 0.2
  P528:
    value: Caldwell 9
    source count: 0
    confidence: 0.0
  P646:
    value: /m/03cgjl2
    source count: 1
    confidence: 0.2
  P1215:
    value:
      amount: +7.7
    source count: 1
    confidence: 0.2
  P2583:
    value:
      unit: Q11929860
      amount: +0.84
    source count: 1
    confidence: 0.2
  P3083:
    value: LBN 110.11+02.44
    source count: 1
    confidence: 0.2
  P6257:
    value:
      unit: Q28390
      amount: +344.2746
    source count: 1
    confidence: 0.2
  P6258:
    value:
      unit: Q28390
      amount: +62.6359
    source count: 1
    confidence: 0.2
  P6259:
    value: Q1264450
    source count: 1
    confidence: 0.2
    value label: J2000.0
citations:
  source: Freebase Data Dumps
  stated in qid: Q15241312
  pub year: 2013
citations:
  source: SIMBAD
  stated in qid: Q654724
citations:
  source: A CGPS look at the spiral structure of the outer Milky Way. I. Distances and velocities to star-forming regions
  stated in qid: Q66618185
citations:
  source: Finding distant galactic HII regions
  stated in qid: Q66436318
meta:
  wikidata id: Q859146
  domain: h_ii_region
  level: standard
  html url: https://4ort.xyz/entity/cave-nebula
  markdown url: https://4ort.xyz/entity/cave-nebula.md
  facts url summary: https://4ort.xyz/entity/cave-nebula/facts.json
  facts url standard: https://4ort.xyz/entity/cave-nebula/facts.json
  facts url full: https://4ort.xyz/entity/cave-nebula/facts.json
  data source: Wikidata (CC0 / public domain)
  license: https://creativecommons.org/publicdomain/zero/1.0/
  api version: v1
  served at: 2026-08-22T06:59:38.857589Z
  entity updated at: 2026-05-03T23:45:09.469384+00:00Z
  entity created at: 2026-04-11T00:03:27.579187+00:00Z