Kharchenko 2

(MWSC 2900)

0.33 UTI

0.32

C_N

0.24

C_dens

0.62

C_C3

0.23

C_lit

1.0

C_dup

N_m (P>50%) 32

Core radius and density 1.5 [pc], 1.2 [pc^-2]

C3 classification CA

C_N 0.32 Poorly populated
C_dens 0.24 Very loose
C_C3 0.62 Intermediate quality
C_lit 0.23 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Kharchenko 2 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a very massive, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

Note: This object shares a moderate percentage of members with at least one entry reported in the same catalogue. See table with shared members information.

Relatively close High extinction Very massive Intermediate age

Bica et al. (2019)
Web updates in DAML02, some were later removed (2003 to 2010).

Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: exposed cluster, with submm emission not associated with the cluster.

Data

🔍 Search references for Kharchenko 2 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–	275.592	-14.605	0.316	-0.245	-1.936	-240.386
Just et al.	2023	275.579	-14.587	–	–	–	–
Dias et al.	2018	–	–	–	-0.76	-1.95	–
Sampedro et al.	2017	275.571	-14.59	–	2.13	-0.35	–
Kharchenko et al.	2016	275.579	-14.587	–	–	–	–
Kharchenko et al.	2013	275.587	-14.585	–	-0.07	-0.33	–
Morales et al.	2013	275.571	-14.59	–	–	–	–
Bukowiecki et al.	2011	275.575	-14.578	–	–	–	–
Dias et al.	2002	275.571	-14.59	–	-0.69	-2.45	–

💡 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–	2.53	3.28	–	183	–	5196	–	–
Just et al.	2023	–	–	–	266	–	9528	–	–
Kharchenko et al.	2016	3.41	3.28	–	266	–	–	–	–
Kharchenko et al.	2013	3.41	3.28	–	266	–	–	–	–
Morales et al.	2013	1.99	–	–	100	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	865	–	–
Bukowiecki et al.	2011	2.53⁽¹⁾	3.38	–	79	–	–	–	–
Dias et al.	2002	1.99	2.27	–	100	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Kronberger 25	28.1	275.67	-14.73	0.28	-0.32	-1.9	–	0.63

💡 Note: The % column shows the percentage of members that Kharchenko 2 shares with each listed object.

Visualization

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