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Cluster with nebulosity · Perseus

omi Per Cloud

Deep skyIC 348

Scientific overview

omi Per Cloud is a cluster with nebulosity in the constellation Perseus. It spans about 10 arcminutes of sky.

Location in the sky

Constellation
Perseus
RA / Dec
3.7428h / 32.1628°
Hemisphere
Northern
Season
Winter

Precision measurements

Distances and velocities from SIMBAD · IC 348

Distance1,032 lySIMBAD · catalogued
Physical size (major axis)3.002795 lySIMBAD · derived
Physical size (minor axis)3.002795 lySIMBAD · derived
Radial velocity15.44 ± 0.08 km/sSIMBAD · measured
Right ascension (ICRS)56.132083 degSIMBAD · measured
Declination (ICRS)32.158889 degSIMBAD · measured
Full field-level provenance
  • Distance: Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · mesDistance · dist · 2022ApJ...931..156P · catalogued value · source value 316.5 pc · retrieved 2026-07-11
  • Physical size (major axis): Centre de données astronomiques de Strasbourg (CDS) · derived (OpenNGC angular size × SIMBAD distance) · physical size = angular size × distance (small-angle); angular size from OpenNGC, distance from SIMBAD mesDistance · derived · retrieved 2026-07-11
  • Physical size (minor axis): Centre de données astronomiques de Strasbourg (CDS) · derived (OpenNGC angular size × SIMBAD distance) · physical size = angular size × distance (small-angle); angular size from OpenNGC, distance from SIMBAD mesDistance · derived · retrieved 2026-07-11
  • Radial velocity: Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · rvz_radvel · 2021A&A...647A..19T · direct catalogue measurement · retrieved 2026-07-11
  • Right ascension (ICRS): Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · ra · 2021A&A...647A..19T · direct catalogue measurement · retrieved 2026-07-11
  • Declination (ICRS): Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · dec · 2021A&A...647A..19T · direct catalogue measurement · retrieved 2026-07-11

Physical size is derived from the OpenNGC angular size and the catalogued distance (small-angle: size = angle × distance). This is a Galactic object: its Doppler shift is shown as a radial velocity, not a cosmological redshift. Fields a source did not provide are omitted, never invented.

ObjectTypeMagSize (′)
h Persei ClusterNGC 869Open cluster3.714.4
chi Persei ClusterNGC 884Open cluster3.810.5
California NebulaNGC 1499Nebula5160
M 34M 34 · NGC 1039Open cluster5.222.5
NGC 1545NGC 1545Open cluster6.24.2
NGC 1528NGC 1528Open cluster6.49.6
NGC 1444NGC 1444Open cluster6.63.6
NGC 1342NGC 1342Open cluster6.76.3

Sources

The primary and reference sources this topic draws on.

  • OpenNGCOpenNGC (M. Verga) — NGC/IC, Messier, and Caldwell catalogue data

    Openly-licensed deep-sky catalogue: object types, positions, magnitudes, sizes, morphology, and cross-identifiers.