Pfleiderer 1

(PWM 1; FSR 0527; MWSC 104)

0.43 UTI

0.5

C_N

1.0

C_dens

0.62

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 50

Stellar density (N₅₀/rad) 16.3 [N/pc²]

C3 classification AC

C_N 0.5 Moderately populated
C_dens 1.0 Very dense
C_C3 0.62 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Pfleiderer 1 is a moderately populated, very dense object of intermediate C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by moderate extinction. It is catalogued as an old cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 7 years.

Note: This object shares a significant percentage of members with a later reported entry. See table with shared members information.

Very distant Moderate extinction Old

Data

🔍 Search references for Pfleiderer 1 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	99999–	17.025	65.647	0.166	-1.853	-0.127	-74.299
Bica et al.	2019	17.024	65.646	–	–	–	–
Dias et al.	2002	17.029	65.647	–	-2.48	3.83	–

💡 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]	B_frac	BSS
UCC	99999–	7.2	2.91	–	1000	–	–	–	–
Dias et al.	2002	7.20	2.91	–	1000	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3623	64.0	17.02	65.65	0.16	-1.84	-0.17	-72.3	0.09

💡 Note: The % column shows the percentage of members that Pfleiderer 1 shares with each listed object.

Visualization

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