HSC 1553

0.14 UTI

0.83

C_N

1.0

C_dens

0.75

C_C3

0.25

C_lit

0.24

C_dup

C3 classification AB

Number of members (P>50%) 306

Radius (P>50% members) 96.6 [arcmin]

C_N 0.83 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.25 Poorly studied
C_dup 0.24 Likely duplicate

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

Overview

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HSC 1553 is a rich, very dense object of high C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.

⚠️ Warning: This is likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.

Very close Low extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 1553 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	–	92.79	14.337	4.627	5.645	-16.52	22.097
Zhang et al.	2024	93.013	13.982	–	–	–	–
Hunt & Reffert	2024	93.013	13.982	4.62	5.63	-16.33	21.319
Cavallo et al.	2024	92.423	14.753	4.637	–	–	–
Hunt & Reffert	2023	93.013	13.982	4.62	5.63	-16.33	21.319

💡 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
Zhang et al.	2024	–	–	–	–	-0.020*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	66*	–	–
Cavallo et al.	2024	0.21	0.56	–	28	-0.040	–	–	–
Hunt & Reffert	2023	0.22	0.04	0.61	38	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OCSN 306	76.5	92.57	14.92	4.72	5.84	-16.97	22.36	0.04
Theia 116	71.2	92.58	14.93	4.77	5.89	-17.1	22.36	0.51

💡 Note: The % column shows the percentage of members that HSC 1553 shares with each listed object.

Visualization

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