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Table 4

Proper motions.

Object Reference μαcosδ μ δ
[mas/yr] [mas/yr]

RX J0915.5
–7609 UCAC 3 (1) –29.3 ± 2.0 18.9 ± 1.4

RX J0919.4 Hipparcos
–7738 (new) (2) –109.7 ± 0.88 72.35 ± 0.8
Tycho-2 (3) –82.0 ± 11.3 73.10 ± 7.7
PPMX (4) –108.19 ± 1.5 68.28 ± 1.6

used:
UCAC 3 (1) –105.3 ± 1.2 72.1 ± 1.2

RX J0935.0
–7804 UCAC 3 (1) –28.6 ± 1.3 19.2 ± 1.3

RX J0952.7
–7933 UCAC 3 (1) –13.5 ± 0.9 2.0 ± 0.9

RX J1014.2
–7636 UCAC 3 (1) –47.2 ± 1.7 30.6 ± 3.6

SZ Cha UCAC 3 (1) –22.5 ± 6.9 1.7 ± 2.7

Ced 110
IRS 2 UCAC 3 (1) –19.2 ± 1.0 5.0 ± 1.6

Cha Hα 2 PSSPMC (5) –23 ± 17 1 ± 17
SSS-FORS1 (6) –19.4 ± 14.9 –0.3 ± 14.9
SSS-SofI (6) –23.0 ± 14.1 7.8 ± 14.1

weighted mean –21.75 ± 8.77 3.18 ± 8.77

VW Cha UCAC 3 (1) –19.7 ± 1.3 –0.8 ± 3.4

RX J1109.4
–7627 UCAC 3 (1) –22.3 ± 1.8 –0.8 ± 9.9

HD 97300 Hipparcos
(new) (2) –21.63 ± 0.94 –0.72 ± 0.78
Tycho-2 (3) –19.1 ± 1.4 –0.1 ± 1.4
PPMX (4) –21.01 ± 1.4 –0.48 ± 1.5

used:
UCAC 3 (1) –17.7 ± 1.0 –2.7 ± 1.1

WX Cha UCAC 3 (1) –20.9 ± 1.7 –0.6 ± 2.3

WY Cha ICRF
extension (7) –7 ± 13 11 ± 11

used:
UCAC 3 (1) –22.2 ± 1.8 –0.5 ± 1.8

HJM C7-11 UCAC 3 (1) –20.3 ± 1.8 1.7 ± 1.8

Sz 41 ICRF
extension (7) –15 ± 5 9 ± 4

used:
UCAC 3 (1) –29.8 ± 4.3 4.7 ± 1.7

HM Anon Tycho-2a (3) –17.5 ± 5.7 –72.3 ± 5.5

used:
UCAC 3 (1) –21.6 ± 1.0 4.8 ± 1.0

Median Cha I Luhmanb (8) –21 ± ~ 1 2 ± ~ 1

Notes. Only independent sources with individual error bars for the targets were taken into account.

(a)

As given in Skiff (2009), the Tycho-2 coordinates are wrong and HM Anon equals TYC 9414-1250-1.

(b)

Based on UCAC2 proper motions from (9).

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