UPK 41

(OCSN 292)

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0.69 UTI
0.82
CN
1.0
Cdens
0.75
CC3
0.44
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 283
Radius (P>50% members) 31.3 [arcmin]
  • CN 0.82 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.44 Poorly studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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UPK 41 is a rich, very dense object of high C3 quality. Its parallax locates it at a very 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 distance and age parameters (see Parameters). It is poorly studied in the literature.

Note: This object shares a small percentage of members with 4 later reported entries. See table with shared members information.

Close Moderate extinction Near-solar metallicity Very young

Cavallo et al. (2024)
Silver sample.

Data
🔍 Search references for UPK 41 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 – 279.577 0.42 2.089 2.634 -8.286 -5.036
Zhang et al. 2024 279.462 0.461 – – – –
Hunt & Reffert 2024 279.462 0.461 2.092 2.657 -8.269 -3.372
Cavallo et al. 2024 279.734 0.367 2.089 – – –
Hunt & Reffert 2023 279.462 0.461 2.092 2.657 -8.269 -3.372
Qin et al. 2023 279.52 0.5 2.08 2.75 -8.17 -5.7
He et al. 2022 279.619 0.342 2.096 2.647 -8.242 –
Sim et al. 2019 279.742 0.495 – 2.51 -8.13 –

💡 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] Bfr BSS
Zhang et al. 2024 – – – – -0.055* – – –
Hunt & Reffert 2024 – – – – – 316* – –
Cavallo et al. 2024 0.55 2.89 – 5 -0.100 – – –
Hunt & Reffert 2023 0.46 3.03 2.41 6 – – – –
Qin et al. 2023 1.71 3.13 – 631 – – – –
He et al. 2022 – 2.25 – 6 – – – –
Sim et al. 2019 0.48 – – 7 – – – –

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWWDL 14646 11.7 279.45 -0.34 2.13 2.75 -8.43 0.18 0.0
OC 0059 10.6 279.46 -0.37 2.14 2.83 -8.45 2.52 0.0
CWWDL 14647 10.2 279.98 0.64 2.09 2.52 -8.25 -7.7 0.0
OC 0062 8.8 279.39 0.44 2.06 2.55 -8.24 1.1 0.0

💡 Note: The % column shows the percentage of members that UPK 41 shares with each listed object.

Visualization
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UPK 41 UCC
UPK 41 HUNT23
Galactocentric position diagram