FSR 0291
(MWSC 3489)
0.38
UTI
0.47
CN
0.36
Cdens
0.75
CC3
0.16
Clit
1.0
Cdup
Nm (P>50%)
47
Core radius and density
1.6 [pc], 1.8 [pc-2]
- CN 0.47 Poorly populated
- Cdens 0.36 Loose
- CC3 0.75 High quality
- Clit 0.16 Rarely 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 0291 is a poorly populated, loose object of high C3 quality. Its parallax locates it at a large* distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is rarely studied in the literature.
(*): The parallax distance estimate (~7.67 kpc) differs significantly from the median photometric distance (~5.14 kpc).
Note: This object contains blue stragglers according to at least one source.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 319.084 | 48.348 | 0.13 | -3.178 | -4.204 | â |
| Cui et al. | 2025 | 319.084 | 48.347 | 0.14 | -3.22 | -4.24 | â |
| Hunt & Reffert | 2024 | 319.079 | 48.354 | 0.145 | -3.171 | -4.193 | â |
| Cavallo et al. | 2024 | 319.091 | 48.351 | 0.139 | â | â | â |
| He et al. | 2023 | 319.082 | 48.349 | 0.136 | -3.215 | -4.242 | â |
| Hunt & Reffert | 2023 | 319.079 | 48.354 | 0.145 | -3.171 | -4.193 | â |
| Bica et al. | 2019 | 319.089 | 48.36 | â | â | â | â |
| Froebrich et al. | 2007 | 319.083 | 48.362 | 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 | 5.14 | 4.78 | 2.19 | 295 | 0.300 | 963 | â | 20 |
| Cui et al. | 2025 | â | 4.80 | â | 631 | â | â | â | 20(1) |
| Hunt & Reffert | 2024 | 5.14 | 4.78 | 2.19 | 110 | â | 963(1) | â | â |
| Cavallo et al. | 2024 | 5.94 | 4.44 | â | 295 | 0.300 | â | â | â |
| He et al. | 2023 | 4.68 | 4.70 | â | 1585 | â | â | â | â |
| Hunt & Reffert | 2023 | 5.14 | 4.78 | 2.19 | 110 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Cavallo et al. (2024)
Silver sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.20 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.20 (50th percentile).