NGC 6994

0.05 UTI

0.0

C_N

0.14

C_dens

0.12

C_C3

0.0

C_lit

1.0

C_dup

C3 classification CD

Number of members (P>50%) 21

Radius (P>50% members) 4.7 [arcmin]

C_N 0.0 Sparse
C_dens 0.14 Very loose
C_C3 0.12 Very low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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NGC 6994 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, well below the mid-plane, affected by low extinction. It is catalogued as an old cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 20 years.

(*): The parallax distance estimate (~3.95 kpc) differs significantly from the median photometric distance (~0.62 kpc).

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Close Low extinction Old

Cantat-Gaudin et al. (2020)
Extensively studied; modern astrometry and radial velocities conclusively show it is an asterism. More details in Appendix A of the article.

Dias et al. (2002)
Asterism (Odenkirchen, M.; Soubiran, C. 2002, A&A 383, 163; Pavani, D.; Bica, E. 2007, A&A 468, 139)

Data

🔍 Search references for NGC 6994 in: SciX Simbad

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Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	314.717	-12.618	0.253	-2.265	-5.356	–
van den Bergh	2006	314.75	-12.633	–	–	–	–

💡 Note: The UCC values are estimated from its identified members.

Reference	Year	Dist [kpc]	Av [mag]	DAv [mag]	Age [Myr]	[Fe/H] [dex]	Mass [Msun]	Bfr	BSS
van den Bergh	2006	0.62	0.22	–	2512	–	–	–	–

Visualization

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