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Home All issues Volume 709 (May 2026) A&A, 709 (2026) A97 Full HTML
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Table 1

Young stellar clusters in Vel OB1.

Name 1 b N Parallax μl* μb VLSR D Age AV p
− (deg) (deg) − (mas) (mas yr−1) (mas yr−1) (km s−1) (pc) (Myr) (mag) −
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12)
Cl 1594 264.73 0.27 21 0.480±0.010 −6.498±0.452 −1.203±0.589 6.8±3.9 2084−41.3+43.0Mathematical equation: $\[2084_{-41.3}^{+43.0}\]$ 2.6–6.6 5 −
IRAS 08337-4028 259.95 0.02 14 0.624±0.012 −5.979±0.833 −2.108±0.982 10.8±5.2 1603−30.5+31.7Mathematical equation: $\[1603_{-30.5}^{+31.7}\]$ 5.0–8.9 5 −
PN K 2-15 263.24 0.52 12 0.560±0.007 −7.125±0.402 −1.074±0.533 8.3±2.9 1787−22.4+23.0Mathematical equation: $\[1787_{-22.4}^{+23.0}\]$ 0.5–3.0 5 −
RCW 34 264.35 1.44 48 0.509±0.005 −6.773±0.487 −0.826±0.763 8.2±4.6 1967−18.0+18.4Mathematical equation: $\[1967_{-18.0}^{+18.4}\]$ 4.7–9.9 4 0.85
RCW 38 267.94 −1.06 378 0.560±0.001 −6.682±0.359 −1.052±0.346 4.3±3.6 1785−4.1+4.2Mathematical equation: $\[1785_{-4.1}^{+4.2}\]$ 3.2–7.1 3 0.9
RCW 41 270.24 0.83 35 0.645±0.006 −6.682±0.367 −0.913±0.370 4.5±2.3 1550−14.3+14.6Mathematical equation: $\[1550_{-14.3}^{+14.6}\]$ 0.7–1.0 7 0.7

Notes. (1) Name of the region, (2), (3) Galactic coordinates, (4) number of members based on the membership probability p, (5) Gaia DR3 parallaxes with 1σ uncertainties, (6–7) mean proper motion with their standard deviation, (8) tangential velocity of the cluster with respect to the LSR with 1σ uncertainty, (9) distance from Gaia DR3 parallax with 1σ uncertainties, (10) and (11) the age range based on 100 iterations and a fixed extinction, respectively, and (12) the membership probability. The [KPS2012] MWSC 1594 open cluster is indicated as Cl 1594.

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