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IC 361

IC 361
Observation data (J2000 epoch)
Right ascension04h 18m 56.6s[1]
Declination+58° 15′ 07″[1]
Distance10,500 ± 230 ly (3.22 ± 0.07 kpc)[2]
Apparent magnitude (V)11.7[3]
Apparent dimensions (V)6.0′[3]
Physical characteristics
Mass2,459±491[4] M☉
Radius24.5 ly[2]
Estimated age759 Myr[1]
Other designationsC 0414+581[5]
Associations
ConstellationCamelopardalis
See also: Open cluster, List of open clusters

IC 361 is an open cluster of stars in the constellation Camelopardalis. It was discovered by the British amateur astronomer William F. Denning on February 11, 1893.[6] This cluster is located at a distance of 10,500 ± 230 light-years from the Sun.[2] It is very faint with an apparent visual magnitude of 11.7,[3] requiring a telescope to view. Because of its faintness, this cluster has been poorly studied.[7] The cluster spans an angular size of 6.0′.[3]

This intermediate–age cluster is located in or beyond the Perseus Arm of the Milky Way galaxy.[7] It is situated near dark nebulae, resulting in significant levels of extinction due to interstellar dust. The cluster has a core radius of 2.0′±0.4′ and a cluster radius of 8.0′±0.5′. At an estimated distance of 3.22 kpc this corresponds to a physical core radius of 6.1 ly and a cluster radius of 24.5 ly.[2] It has an estimated age of 759 million years.[1] The cluster is mildly metal deficient, matching the metallicity gradient of the Milky Way.[7]

Two candidate blue stragglers have been identified in this cluster.[8]

  1. ^ a b c d Cite error: The named reference Tarricq_et_al_2021 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference Joshi_2022 was invoked but never defined (see the help page).
  3. ^ a b c d Cite error: The named reference Aranda_2011 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Almeida_et_al_2023 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference CSeligman was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference Zdanavičius_et_al_2010 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Rain_et_al_2021 was invoked but never defined (see the help page).

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