Arches

(BDB2003 G000.12+00.01)

0.25 UTI

0.65

C_N

0.66

C_dens

0.12

C_C3

0.0

C_lit

0.88

C_dup

N₅₀ (P>50% members) 80

Stellar density (N₅₀/rad) 3.3 [N/pc²]

C3 classification DC

C_N 0.65 Moderately populated
C_dens 0.66 Moderately dense
C_C3 0.12 Very low quality
C_lit 0.0 Rarely studied
C_dup 0.88 Very likely unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Arches is a moderately populated, moderately dense object of very low C3 quality. Its parallax locates it at a moderate^* distance, near the mid-plane. It is catalogued as a very young cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 13 years.

(*): The parallax distance estimate (~2.05 kpc) differs significantly from the median photometric distance (~8.23 kpc).

Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry. See table with shared members information.

Very distant Very young

Morales et al. (2013)
Classified as morphological type 'EC2' (partially embedded cluster). Morphological flag: cluster partially embedded.

Data

🔍 Search references for Arches 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–	266.517	-28.848	0.489	0.075	-2.101	21.145
Morales et al.	2013	266.458	-28.823	–	–	–	–

💡 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–	8.23	–	–	2	–	–	–	–
Morales et al.	2013	8.23	–	–	2	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Dutra Bica 5	12.5	266.79	-28.78	0.38	0.11	-2.15	-22.0	0.48
VVV 146	6.2	266.57	-28.81	0.49	0.29	-1.58	–	0.14
Dutra Bica 6	3.8	266.84	-28.81	0.35	0.02	-2.22	-18.64	0.19

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

Visualization

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