W75N

0.05 UTI

0.0

C_N

0.08

C_dens

0.62

C_C3

0.0

C_lit

0.36

C_dup

N₅₀ (P>50% members) 20

Stellar density (N₅₀/rad) 0.4 [N/pc²]

C3 classification AC

C_N 0.0 Sparse
C_dens 0.08 Very loose
C_C3 0.62 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 0.36 Possibly duplicate

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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W75N is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane. It is catalogued as a cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 23 years.

⚠️ Warning: This is possibly a duplicate object, which shares a significant percentage of members with at least one previously reported entry. See table with shared members information.

(*): The parallax distance estimate (~4.31 kpc) differs significantly from the median photometric distance (~2.00 kpc).

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=0.36) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close

Bica et al. (2003)
Classified as infrared cluster (IRC).

Lada & Lada (2003)
Embedded cluster within ∼2 Kpc of the Sun.

Data

🔍 Search references for W75N 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	99999–	309.72	42.763	0.232	-3.489	-4.857	–
Lada & Lada	2003	309.656	42.632	–	–	–	–
Bica et al.	2003	309.651	42.625	–	–	–	–

💡 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]	B_frac	BSS
UCC	99999–	2.0	–	–	–	–	99	–	–
Lada & Lada	2003	2.00	–	–	–	–	99	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
DB2001 20	64.0	309.71	42.8	0.28	-3.47	-4.96	–	0.2

💡 Note: The % column shows the percentage of members that W75N shares with each listed object.

Visualization

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