FSR 1694

0.53 UTI

0.51

C_N

1.0

C_dens

1.0

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 52

Core radius and density 0.7 [pc], 22 [pc^-2]

C3 classification AA

C_N 0.51 Moderately populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.06 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

FSR 1694 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is rarely studied in the literature.

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

Close High extinction Near-solar metallicity Very young

Palma et al. (2025)
Part of multiple system G212, along with ASCC_79 and Majaess_160.

Cavallo et al. (2024)
Wood sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 0.06 (50th percentile), false positive? (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.06 (50th percentile), false positive? (human-assigned).

Data

🔍 Search references for FSR 1694 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	228.734	-62.776	1.251	-3.447	-4.113	–
Hunt & Reffert	2024	228.73	-62.778	1.237	-3.403	-4.175	7.735
Cavallo et al.	2024	228.774	-62.77	1.24	–	–	–
Hunt & Reffert	2023	228.73	-62.778	1.237	-3.403	-4.175	7.735
Froebrich et al.	2007	228.767	-62.761	–	–	–	–

💡 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–	0.79	3.12	2.39	6	0.090	261	–	–
Hunt & Reffert	2024	0.79	3.12	2.39	6	–	261⁽¹⁾	–	–
Cavallo et al.	2024	1.50	2.43	–	76	0.090	–	–	–
Hunt & Reffert	2023	0.79	3.12	2.39	6	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OC 0620	50.0	228.72	-62.77	1.27	-3.45	-4.1	–	0.0

💡 Note: The % column shows the percentage of members that FSR 1694 shares with each listed object.

Visualization

ℹ️

1 2