OCSN 33

0.06 UTI

0.62

C_N

0.65

C_dens

1.0

C_C3

0.0

C_lit

0.12

C_dup

C3 classification AA

Number of members (P>50%) 73

Radius (P>50% members) 67.4 [arcmin]

C_N 0.62 Moderately populated
C_dens 0.65 Moderately dense
C_C3 1.0 Very high quality
C_lit 0.0 Rarely studied
C_dup 0.12 Likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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OCSN 33 is a moderately populated, moderately dense object of very high C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as an intermediate-age cluster (see Parameters). It was recently reported in the literature.

⚠️ Warning: This is likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.

Very close Low extinction Intermediate age

Data

🔍 Search references for OCSN 33 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	–	335.079	56.534	4.135	16.791	4.809	-13.98
Qin et al.	2023	335.34	56.57	4.11	16.18	4.89	-13.96

💡 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
Qin et al.	2023	0.26	0.31	–	100	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Delta Cephei Cluster	87.7	335.47	56.64	4.14	16.9	4.72	-14.54	0.5
Cep OB6	34.2	335.13	56.44	4.13	16.79	4.79	-14.34	0.0

💡 Note: The % column shows the percentage of members that OCSN 33 shares with each listed object.

Visualization

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