Collinder 347
0.63
UTI
0.78
CN
0.85
Cdens
0.75
CC3
0.39
Clit
1.0
Cdup
Nm (P>50%)
184
Core radius and density
1.7 [pc], 4.3 [pc-2]
- CN 0.78 Rich
- Cdens 0.85 Dense
- CC3 0.75 High quality
- Clit 0.39 Poorly studied
- Cdup 1.0 Unique
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
Collinder 347 is a rich, dense object of high C3 quality. Its parallax locates it at a moderate* distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, very young cluster (see Parameters). It is poorly studied in the literature.
(*): The parallax distance estimate (~3.00 kpc) differs significantly from the median photometric distance (~1.51 kpc).
Note: This object shares a moderate percentage of members with a later reported entry. See table with shared members information.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 266.575 | -29.335 | 0.333 | 0.377 | -1.889 | 8.865 |
| Hunt & Reffert | 2024 | 266.581 | -29.345 | 0.334 | 0.392 | -1.886 | 21.376 |
| Cavallo et al. | 2024 | 266.584 | -29.333 | 0.333 | â | â | â |
| He et al. | 2023 | 266.586 | -29.344 | 0.347 | 0.324 | -1.75 | 8.86 |
| Hunt & Reffert | 2023 | 266.581 | -29.345 | 0.334 | 0.392 | -1.886 | 21.376 |
| Dias et al. | 2018 | â | â | â | -0.35 | -2.5 | â |
| Sampedro et al. | 2017 | 266.575 | -29.333 | â | -2.13 | -2.02 | â |
| Dias et al. | 2014 | 266.575 | -29.333 | â | -1.94 | -2.13 | â |
| Morales et al. | 2013 | 266.575 | -29.333 | â | â | â | â |
| Bukowiecki et al. | 2011 | 266.525 | -29.262 | â | â | â | â |
| van den Bergh | 2006 | 266.6 | -29.3 | â | â | â | â |
| Dias et al. | 2002 | 266.575 | -29.333 | â | -1.94 | -2.13 | â |
| Lynga | 1987 | 266.587 | -29.291 | â | â | â | â |
| van den Bergh & Hagen | 1975 | 265.8 | -29.283 | â | â | â | â |
đĄ 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] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 1.51 | 3.965 | 3.0 | 6 | -0.320 | 1868 | â | â |
| Hunt & Reffert | 2024 | 2.78 | 4.27 | 3.00 | 6 | â | 2548(1) | â | â |
| Cavallo et al. | 2024 | 1.75 | 4.53 | â | 5 | -0.320 | â | â | â |
| He et al. | 2023 | 2.57 | 4.45 | â | 2 | â | â | â | â |
| Hunt & Reffert | 2023 | 2.78 | 4.27 | 3.00 | 6 | â | â | â | â |
| Morales et al. | 2013 | 1.51 | â | â | 12 | â | â | â | â |
| Bukowiecki et al. | 2012 | â | â | â | â | â | 1188 | â | â |
| Bukowiecki et al. | 2011 | 1.42(1) | 3.12 | â | 13 | â | â | â | â |
| van den Bergh | 2006 | 1.51 | 3.66 | â | 12 | â | â | â | â |
| Dias et al. | 2002 | 1.51 | 3.66 | â | 12 | â | â | â | â |
| Lynga | 1987 | 1.50 | 3.53 | â | 6 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Palma et al. (2025)
Part of multiple system G23, along with BH_245, NGC_6451 and HSC_2985.
Cavallo et al. (2024)
Silver sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.02 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.02 (50th percentile).
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.