FSR 1527

(MWSC 1765)

0.66 UTI

0.61

C_N

0.96

C_dens

0.75

C_C3

0.5

C_lit

1.0

C_dup

N₅₀ (P>50% members) 72

Stellar density (N₅₀/rad) 4.8 [N/pc²]

C3 classification AB

C_N 0.61 Moderately populated
C_dens 0.96 Very dense
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

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FSR 1527 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a moderate 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 moderately studied in the literature.

Relatively close High extinction Near-solar metallicity Very young

Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P21, along with HSC_2315.

Cavallo et al. (2024)
Bronze sample.

Data

🔍 Search references for FSR 1527 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–	151.654	-57.421	0.398	-7.98	4.436	-17.952
Hunt & Reffert	2024	151.653	-57.427	0.395	-7.962	4.402	-10.594
Cavallo et al.	2024	151.702	-57.444	0.399	–	–	–
He et al.	2023	151.667	-57.422	0.393	-7.975	4.443	20.19
Hunt & Reffert	2023	151.653	-57.427	0.395	-7.962	4.402	-10.594
Just et al.	2023	151.628	-57.41	–	–	–	–
Bica et al.	2019	151.637	-57.417	–	–	–	–
Kharchenko et al.	2016	151.628	-57.41	–	–	–	–
Kharchenko et al.	2013	151.633	-57.414	–	-3.42	5.27	–
Froebrich et al.	2007	151.633	-57.414	–	–	–	–

💡 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–	2.88	3.23	2.73	2	0.290	358	–	–
Hunt & Reffert	2024	–	–	–	–	–	595⁽¹⁾	–	–
Cavallo et al.	2024	2.28	2.17	–	71	0.290	–	–	–
He et al.	2023	2.88	3.40	–	3	–	–	–	–
Hunt & Reffert	2023	2.42	2.48	2.73	14	–	–	–	–
Just et al.	2023	–	–	–	2	–	121	–	–
Kharchenko et al.	2016	3.26	3.23	–	2	–	–	–	–
Kharchenko et al.	2013	3.26	3.23	–	2	–	–	–	–

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

Visualization

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