Bica 1

0.13 UTI

0.0

C_N

0.38

C_dens

0.0

C_C3

0.13

C_lit

1.0

C_dup

N₅₀ (P>50% members) 19

Stellar density (N₅₀/rad) 1.9 [N/pc²]

C3 classification DD

C_N 0.0 Sparse
C_dens 0.38 Loose
C_C3 0.0 Very low quality
C_lit 0.13 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Bica 1 is a sparse, loose object of very low C3 quality. Its parallax locates it at a relatively close^* distance, near the mid-plane, affected by very high extinction. It is catalogued as a massive, very young cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 8 years.

(*): The parallax distance estimate (~1.69 kpc) differs significantly from the median photometric distance (~1.21 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.

Relatively close Very high extinction Massive Very young

Data

🔍 Search references for Bica 1 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–	308.262	41.262	0.591	-1.476	-2.232	–
Dias et al.	2018	–	–	–	-2.65	-3.58	–
Sampedro et al.	2017	308.292	41.219	-0.37	-2.94	–	–
Dias et al.	2014	308.292	41.219	–	-1.67	-2.07	–
Bukowiecki et al.	2011	308.296	41.221	–	–	–	–
Dias et al.	2002	308.292	41.219	–	-1.67	-2.07	–

💡 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–	1.205	6.265	–	6	–	1288	–	–
Bukowiecki et al.	2012	–	–	–	–	–	1288	–	–
Bukowiecki et al.	2011	0.61⁽¹⁾	5.84	–	7	–	–	–	–
Dias et al.	2002	1.80	6.69	–	4	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Visualization

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