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H II region · Orion

Flame Nebula

Deep skyIC 434

Scientific overview

Flame Nebula is an H II region in the constellation Orion. It shines at apparent magnitude 11 and spans about 90 arcminutes of sky.

Observation guide

Difficulty
Medium telescope
Recommended equipment
≈ 150–200 mm telescope
Best observed
Winter (evening sky)
Best hemisphere
Both (equatorial)

Guidance follows standard observing practice, derived from the object's real magnitude and position. A dark, moonless sky always helps.

Location in the sky

Constellation
Orion
RA / Dec
5.6836h / -2.4538°
Hemisphere
Both
Season
Winter

Precision measurements

Distances and velocities from SIMBAD · IC 434

Right ascension (ICRS)85.25 degSIMBAD · measured
Declination (ICRS)-2.5 degSIMBAD · measured
Full field-level provenance
  • Right ascension (ICRS): Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · ra · direct catalogue measurement · retrieved 2026-07-11
  • Declination (ICRS): Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · dec · 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 (′)
Lower SwordNGC 1980Cluster with nebulosity2.59.3
Great Orion NebulaM 42 · NGC 1976Cluster with nebulosity490
Upper SwordNGC 1981Cluster with nebulosity4.29
NGC 1788NGC 1788Reflection nebula5.82
NGC 2169NGC 2169Open cluster5.97.2
NGC 1662NGC 1662Open cluster6.413.8
NGC 2175NGC 2175Cluster with nebulosity6.85.4
NGC 1973NGC 1973Nebula75

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.