FoF 1822

(LP 1822)

0.28 UTI

0.4

C_N

0.26

C_dens

0.75

C_C3

0.0

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 40

Radius (P>50% members) 5.0 [arcmin]

C_N 0.4 Poorly populated
C_dens 0.26 Loose
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

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

Overview

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FoF 1822 is a poorly populated, loose object of high C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~3.79 kpc) differs significantly from the median photometric distance (~2.83 kpc).

Note: This object shares a significant percentage of members with 2 later reported entries. See table with shared members information.

Relatively close High extinction Near-solar metallicity Very young

Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit.

Data

🔍 Search references for FoF 1822 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	–	343.408	62.822	0.264	-2.108	-1.011	-101.645
Almeida et al.	2025	343.408	62.829	–	–	–	–
Dias et al.	2021	343.408	62.829	0.251	-2.243	-0.991	-57.24

💡 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
Almeida et al.	2025	2.83	3.07	–	13	–	640	–	–
Dias et al.	2021	2.83	3.07	–	13	-0.064	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3365	72.5	343.44	62.81	0.27	-1.99	-1.02	-56.86	0.21
HSC 868	60.0	343.42	62.81	0.27	-1.98	-1.01	-56.86	0.32

💡 Note: The % column shows the percentage of members that FoF 1822 shares with each listed object.

Visualization

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