S 287 C

0.23 UTI

0.0

C_N

0.88

C_dens

0.25

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 24

Stellar density (N₅₀/rad) 4.4 [N/pc²]

C3 classification DB

C_N 0.0 Sparse
C_dens 0.88 Dense
C_C3 0.25 Low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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S 287 C is a sparse, dense object of low C3 quality. Its parallax locates it at a moderate^* distance, near the mid-plane. It is catalogued as a low-mass cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 23 years.

(*): The parallax distance estimate (~2.29 kpc) differs significantly from the median photometric distance (~1.40 kpc).

Note: This object shares a significant percentage of members with 3 later reported entries. See table with shared members information.

⚠️ 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.

Relatively close Low mass

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

Data

🔍 Search references for S 287 C 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–	104.88	-4.739	0.437	-1.464	0.603	62.256
Lada & Lada	2003	104.903	-4.673	–	–	–	–

💡 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–	1.4	–	–	–	–	31	–	–
Lada & Lada	2003	1.40	–	–	–	–	31	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
HSC 1723	56.0	104.85	-4.74	0.43	-1.49	0.69	62.26	0.08
Sh2 287C	44.0	104.85	-4.7	0.45	-1.61	0.76	48.19	0.09
BDSB 90	24.0	104.89	-4.81	0.44	-1.49	0.61	62.26	0.21

💡 Note: The % column shows the percentage of members that S 287 C shares with each listed object.

Visualization

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