NGC 884

(MWSC 184)

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0.97 UTI
0.86
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
C3 classification AA
Number of members (P>50%) 390
Radius (P>50% members) 4.9 [arcmin]
  • CN 0.86 Rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique
📥 Members 📊 Colab 🔬 Bayestar19 🔍 SciX 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview
NGC 884 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, very young cluster, but with a large variance across recent sources for the metallicity and mass parameters (see Parameters). It is very well-studied in the literature.

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

Relatively close Moderate extinction Massive Near-solar metallicity Very young

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

Cavallo et al. (2024): Gold sample.

Data
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 35.54 57.147 0.401 -0.604 -1.105 -41.613
Almeida et al. 2025 35.629 57.155 – – – –
Zhang et al. 2024 35.519 57.141 – – – –
Hunt & Reffert 2024 35.519 57.141 0.402 -0.614 -1.142 -43.896
Celli et al. 2024 35.584 57.149 – – – –
Cavallo et al. 2024 35.522 57.142 0.403 – – –
Hunt & Reffert 2023 35.519 57.141 0.402 -0.614 -1.142 -43.896
Just et al. 2023 35.501 57.142 – – – –
Jaehnig et al. 2021 35.252 57.145 0.428 -0.636 -1.078 –
Rain et al. 2021 35.584 57.149 0.398 -0.628 -1.066 –
Dias et al. 2021 35.629 57.155 0.398 -0.626 -1.059 –
Cantat-Gaudin et al. 2020 35.584 57.149 0.398 -0.628 -1.066 –
Dias et al. 2019 35.596 57.126 0.395 -0.607 -1.049 -43.525
Soubiran et al. 2018 35.584 57.149 – – – -43.01
Cantat-Gaudin et al. 2018 35.584 57.149 0.398 -0.628 -1.066 –
Loktin & Popova 2017 35.595 57.126 – -1.298 0.418 -43.6
Kharchenko et al. 2016 35.501 57.142 – – – –
Kharchenko et al. 2013 35.512 57.145 – -4.0 1.65 -43.6
Kharchenko et al. 2012 35.512 57.145 – -4.0 1.65 -43.55
Piskunov et al. 2008 35.492 57.134 – – – –
Kharchenko et al. 2007 35.58 57.14 – 1.75 – -37.66
Kharchenko et al. 2005 35.5 57.14 – -0.84 -0.23 -38.14
Kharchenko et al. 2003 35.5 57.14 – -1.81 1.48 –
Chen et al. 2003 35.647 57.103 – -1.14 -1.56 -40.5
Dias et al. 2002 35.596 57.126 – -2.29 -0.63 -42.64
Dambis 1999 35.596 57.125 – – – –

💡 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 2.15 1.71 – 15 – 2741 – –
Zhang et al. 2024 – – – – -0.169* – – –
Hunt & Reffert 2024 – – – – – 1656* – –
Celli et al. 2024 – – – 18 – 2293 – –
Cavallo et al. 2024 2.56 1.61 – 15 0.150 – – –
Hunt & Reffert 2023 2.39 1.58 0.82 18 – – – –
Just et al. 2023 – – – 16 – 14191 – –
Jaehnig et al. 2021 2.28* – – – – – – –
Rain et al. 2021 2.34 1.74 – 13 – – – 0
Dias et al. 2021 2.15 1.71 – 15 -0.079 – – –
Cantat-Gaudin et al. 2020 2.13 1.72 – 18 – – – –
Dias et al. 2019 1.99 1.27 – 17 -1.335 – – –
Soubiran et al. 2018 2.34 – – – – – – –
Cantat-Gaudin et al. 2018 2.34 – – – – – – –
Loktin & Popova 2017 2.35 1.72 – 11 – – – –
Kharchenko et al. 2016 2.35 1.74 – 16 – – – –
Kharchenko et al. 2013 2.35 1.74 – 16 -0.300 – – –
Kharchenko et al. 2012 2.35 1.74 – 16 -0.300 – – –
Piskunov et al. 2008 2.35 1.74 – 13 – – – –
Kharchenko et al. 2005 2.35 1.74 – 13 – – – –
Kharchenko et al. 2003 2.33 1.74 – – – – – –
Chen et al. 2003 2.35 – – 10 – – – –
Dias et al. 2002 2.94 1.74 – 13 -0.300 – – –
Dambis 1999 2.00 1.77 – 10 – – – –

💡 Note: The parameters are sometimes transformed from their original values to match the format of the columns shown here, see FAQ. The columns DAv, Bfr, BSS correspond to differential extinction, binary fraction, and blue stragglers, respectively. BSS values can be listed as fractions or integers.
(*): indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OC 0250 2.1 35.52 57.16 0.47 -0.55 -1.11 – 0.04

💡 Note: The % column shows the percentage of members that NGC 884 shares with each listed object.

Visualization
NGC 884 UCC
NGC 884 HUNT23
NGC 884 CANTAT20
Galactocentric position diagram

💡 Note: How are the galactocentric plots generated? See FAQ.