These two patches of dust-lit nebulosity sit amid the rich H-alpha veils of the Gamma Cygni (IC 1318) region and are popular RGB targets for revealing deep blue hues against crimson hydrogen. They reward longer focal lengths for isolating the bright knots, but widefields beautifully show their context north of Sadr (γ Cygni). vdB 131 surrounds a star projected in or near the sparse open cluster Dolidze 8, while vdB 132 coincides with the brightest knot of NGC 6914. For imaging, prioritize excellent sky transparency and long broadband integrations, then blend gently with modest H-alpha to keep the reflection color natural.
Names and Catalog numbers
van den Bergh (vdB): vdB 131; vdB 132
NGC: NGC 6914 (complex; components A/B/C where NGC 6914A ≈ vdB 132 and NGC 6914B ≈ vdB 131)
LBN: LBN 280 (commonly associated with the NGC 6914/vdB 132 knot)
Position and the cosmic neighborhood
vdB 131/132 lie about 2.5° north of Sadr (γ Cygni) in the bright Gamma Cygni/IC 1318 emission complex, on the near edge of the vast Cygnus OB2 environment. The field is threaded by dark lanes (e.g., nearby LDN clouds) and sprinkled with tiny reflection and cometary nebulae; the little bipolar object Parsamian 22 (GN 20.22.7) often appears in deeper frames south of the pair. Wide H-alpha frames show them embedded in immense, faint red shells and filaments; tighter crops isolate the blue knots against a mottled dust background. The approximate J2000 field center around RA ≈ 20ʰ24ᵐ, Dec ≈ +42°28′ puts them well-placed for northern observers during mid-summer nights.
Nice to Know
• vdB 131 is frequently framed together with the sparse open cluster Dolidze 8, adding attractive star-field texture to medium-scale images.
• vdB 132 marks the brightest blue knot within the NGC 6914 group and tends to outshine vdB 131 slightly in broadband data, useful when planning exposure weighting.
• A tiny bipolar/reflection object, Parsamian 22 (GN 20.22.7), lurks in the same field and is an appealing bonus target for long integrations and high-resolution setups.
• The surrounding red glow belongs to the H-alpha–rich IC 1318 region (near Cygnus OB2); keeping H-alpha subdued in processing preserves the natural blue of the reflection nebulae.
Brightnes, distance and size
The pair has low surface brightness and benefits strongly from dark skies, long RGB integrations (3–10+ hours), and careful gradient control; integrated “magnitudes” are not robustly quoted because these are diffuse reflection patches. Distance estimates cluster around ~6,000 light-years (with literature ranging ~5,500–7,000 ly). The NGC 6914 nebulosity that hosts vdB 132 and neighbors spans roughly a dozen arcminutes on the sky—about 13′ in many references—which corresponds to roughly ~20–25 light-years at ~6 kly. In practice, imagers often frame 30–60′ fields to include the blue knots, surrounding red IC 1318 emission, and adjacent dark nebulae for a more dramatic composition.
