FSR 1178
(MWSC 1091)
0.66
UTI
0.68
CN
1.0
Cdens
0.75
CC3
0.45
Clit
1.0
Cdup
Stellar density (N50/rad)
6.9 [N/pc2]
- CN 0.68 Moderately populated
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.45 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
FSR 1178 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the absorption parameter (see Parameters). It is poorly studied in the literature.
Note: This object shares a very small 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 | 106.337 | -10.693 | 0.871 | -3.716 | 1.615 | 25.056 |
| Liu et al. | 2025 | 106.36 | -10.69 | 0.86 | -3.71 | 1.63 | 33.09 |
| Hunt & Reffert | 2024 | 106.364 | -10.687 | 0.862 | -3.706 | 1.629 | 33.09 |
| Cavallo et al. | 2024 | 106.329 | -10.663 | 0.859 | â | â | â |
| Hunt & Reffert | 2023 | 106.364 | -10.687 | 0.862 | -3.706 | 1.629 | 33.09 |
| Just et al. | 2023 | 106.344 | -10.678 | â | â | â | â |
| Kharchenko et al. | 2016 | 106.344 | -10.678 | â | â | â | â |
| Kharchenko et al. | 2013 | 106.35 | -10.68 | â | 2.11 | 1.35 | â |
| Froebrich et al. | 2007 | 106.325 | -10.682 | 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 | 1.22 | 1.33 | 1.1 | 4 | -0.360 | 260 | â | â |
| Liu et al. | 2025 | 1.22 | 0.19 | â | 15 | â | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 145(1) | â | â |
| Cavallo et al. | 2024 | 1.14 | 1.33 | â | 4 | -0.360 | â | â | â |
| Hunt & Reffert | 2023 | 1.10 | 0.79 | 1.10 | 8 | â | â | â | â |
| Just et al. | 2023 | â | â | â | 4 | â | 374 | â | â |
| Kharchenko et al. | 2016 | 2.38 | 3.10 | â | 4 | â | â | â | â |
| Kharchenko et al. | 2013 | 2.38 | 3.10 | â | 4 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Liu et al. (2025)
Classified as primordial binary cluster 148 along with vdBergh_92, and of multiple system 14 along with BDSB_96, OC_0377 and vdBergh_92.
Palma et al. (2025)
Part of multiple system G89, along with OC_0377, BDSB_96 and vdBergh_92.
Cavallo et al. (2024)
Gold sample.