FSR 1700

(MWSC 2307)

0.58 UTI

0.72

C_N

0.44

C_dens

0.75

C_C3

0.5

C_lit

1.0

C_dup

N₅₀ (P>50% members) 93

Stellar density (N₅₀/rad) 2.2 [N/pc²]

C3 classification AB

C_N 0.72 Moderately populated
C_dens 0.44 Loose
C_C3 0.75 High quality
C_lit 0.5 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

FSR 1700 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a very large^* distance, well below the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age, metallicity, and mass parameters (see Parameters). It is moderately studied in the literature.

(*): The parallax distance estimate (~16.03 kpc) differs significantly from the median photometric distance (~5.83 kpc).

Very distant Moderate extinction Massive Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for FSR 1700 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	234.696	-59.258	0.062	-4.856	-4.008	10.389
Hu & Soubiran	2025	234.718	-59.26	–	–	–	–
Hunt & Reffert	2024	234.694	-59.264	0.067	-4.866	-3.99	18.438
Cavallo et al.	2024	234.718	-59.26	0.069	–	–	–
Hunt & Reffert	2023	234.694	-59.264	0.067	-4.866	-3.99	18.438
Just et al.	2023	234.691	-59.252	–	–	–	–
Bica et al.	2019	234.723	-59.253	–	–	–	–
Kharchenko et al.	2016	234.691	-59.252	–	–	–	–
Kharchenko et al.	2013	234.705	-59.253	–	-3.26	-0.43	–
Froebrich et al.	2007	234.721	-59.248	–	–	–	–

💡 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–	5.825	2.5	1.75	804	-0.150	1716	–	–
Hu & Soubiran	2025	–	–	–	–	-0.390⁽⁵⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	2961⁽¹⁾	–	–
Cavallo et al.	2024	9.29	2.71	–	7586	0.090	–	–	–
Hunt & Reffert	2023	11.25	4.47	1.75	1279	–	–	–	–
Just et al.	2023	–	–	–	804	–	470	–	–
Kharchenko et al.	2016	2.36	2.29	–	804	–	–	–	–
Kharchenko et al.	2013	2.36	2.29	–	804	–	–	–	–

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

Visualization

ℹ️

1 2