Table 3: Magnitudes of sources associated with the 1.2-millimetre condensations 2, 3 and 4.
Object $\alpha_{2000}$ $\delta_{2000}$ J H $K_{\rm S}$ [3.6] [4.5] [5.8] [8.0] Comments
Condensation 2

Cluster

6		 13$^{\rm h}$40$^{\rm m}$53 $\hbox{$.\!\!^{\rm s}$ }$8 -61 $\hbox{$^\circ$ }$45 $\hbox{$^\prime$ }$46 $\hbox{$^{\prime\prime}$ }$ 13.17 11.71 10.81         MS star, $A_{\rm V}=15$ mag
11 13$^{\rm h}$40$^{\rm m}$53 $\hbox{$.\!\!^{\rm s}$ }$1 -61 $\hbox{$^\circ$ }$46 $\hbox{$^\prime$ }$11 $\hbox{$^{\prime\prime}$ }$ 16.05 12.69 10.94 9.75 9.77 9.41   Giant, $A_{\rm V}=2$3 mag
15 13$^{\rm h}$40$^{\rm m}$54 $\hbox{$.\!\!^{\rm s}$ }$3 -61 $\hbox{$^\circ$ }$45 $\hbox{$^\prime$ }$47 $\hbox{$^{\prime\prime}$ }$ 12.70 12.48 12.25         MS star, $A_{\rm V}=3$ mag
19 13$^{\rm h}$40$^{\rm m}$53 $\hbox{$.\!\!^{\rm s}$ }$3 -61 $\hbox{$^\circ$ }$45 $\hbox{$^\prime$ }$53 $\hbox{$^{\prime\prime}$ }$ 13.30 12.60 12.21         MS star, $A_{\rm V}=7$ mag
22 13$^{\rm h}$40$^{\rm m}$52 $\hbox{$.\!\!^{\rm s}$ }$5 -61 $\hbox{$^\circ$ }$45 $\hbox{$^\prime$ }$52 $\hbox{$^{\prime\prime}$ }$ 13.55 12.73 12.16         MS star, $A_{\rm V}=9$ mag
46 13$^{\rm h}$40$^{\rm m}$53 $\hbox{$.\!\!^{\rm s}$ }$5 -61 $\hbox{$^\circ$ }$45 $\hbox{$^\prime$ }$47 $\hbox{$^{\prime\prime}$ }$ 15.19 13.68 12.87         MS star, $A_{\rm V}=14.5$ mag
85 13$^{\rm h}$40$^{\rm m}$54 $\hbox{$.\!\!^{\rm s}$ }$9 -61 $\hbox{$^\circ$ }$45 $\hbox{$^\prime$ }$48 $\hbox{$^{\prime\prime}$ }$ 16.99 14.85 13.35         MS star, $A_{\rm V}=22$ mag
136 13$^{\rm h}$40$^{\rm m}$53 $\hbox{$.\!\!^{\rm s}$ }$1 -61 $\hbox{$^\circ$ }$45 $\hbox{$^\prime$ }$51 $\hbox{$^{\prime\prime}$ }$ 16.53 14.61 13.60         MS star, $A_{\rm V}=18$ mag
154 13$^{\rm h}$40$^{\rm m}$54 $\hbox{$.\!\!^{\rm s}$ }$0 -61 $\hbox{$^\circ$ }$45 $\hbox{$^\prime$ }$49 $\hbox{$^{\prime\prime}$ }$ 18.22 16.27 13.98         Near-IR excess
372 13$^{\rm h}$40$^{\rm m}$54 $\hbox{$.\!\!^{\rm s}$ }$4 -61 $\hbox{$^\circ$ }$45 $\hbox{$^\prime$ }$50 $\hbox{$^{\prime\prime}$ }$ 19.02 17.44 15.49         Near-IR excess

Whole cluster		 13$^{\rm h}$40$^{\rm m}$53 $\hbox{$.\!\!^{\rm s}$ }$4 -61 $\hbox{$^\circ$ }$45 $\hbox{$^\prime$ }$53 $\hbox{$^{\prime\prime}$ }$       7.35* 7.21* 4.74* 2.74*  

237		 13$^{\rm h}$41$^{\rm m}$02 $\hbox{$.\!\!^{\rm s}$ }$3 -61 $\hbox{$^\circ$ }$44 $\hbox{$^\prime$ }$16 $\hbox{$^{\prime\prime}$ }$ 17.41 15.79 14.23 10.64 8.56 7.79 6.08 Near-IR excess

Filament
31 13$^{\rm h}$40$^{\rm m}$56 $\hbox{$.\!\!^{\rm s}$ }$6 $-61\hbox{$^\circ$ }$45 $\hbox{$^\prime$ }$39 $\hbox{$^{\prime\prime}$ }$ 13.56 13.34 12.96 12.49 12.60      
54 13$^{\rm h}$40$^{\rm m}$56 $\hbox{$.\!\!^{\rm s}$ }$8 $-61\hbox{$^\circ$ }$45 $\hbox{$^\prime$ }$45 $\hbox{$^{\prime\prime}$ }$ 14.76 13.89 13.09          
91 13$^{\rm h}$40$^{\rm m}$57 $\hbox{$.\!\!^{\rm s}$ }$6 $-61\hbox{$^\circ$ }$45 $\hbox{$^\prime$ }$44 $\hbox{$^{\prime\prime}$ }$ 16.62 14.45 12.59 8.66* 7.60* 7.25 6.18 Maser position
460 13$^{\rm h}$40$^{\rm m}$57 $\hbox{$.\!\!^{\rm s}$ }$9 $-61\hbox{$^\circ$ }$45 $\hbox{$^\prime$ }$42 $\hbox{$^{\prime\prime}$ }$ 17.57 15.72 14.49          
482 13$^{\rm h}$40$^{\rm m}$58 $\hbox{$.\!\!^{\rm s}$ }$2 $-61\hbox{$^\circ$ }$45 $\hbox{$^\prime$ }$45 $\hbox{$^{\prime\prime}$ }$ 16.61 15.35 14.05          

Red objects

18		 13$^{\rm h}$40$^{\rm m}$58 $\hbox{$.\!\!^{\rm s}$ }$3 $-61\hbox{$^\circ$ }$46 $\hbox{$^\prime$ }$50 $\hbox{$^{\prime\prime}$ }$ 17.11 13.83 11.45 8.47 7.54 6.79 5.85 Near-IR excess
89 13$^{\rm h}$40$^{\rm m}$58 $\hbox{$.\!\!^{\rm s}$ }$7 $-61\hbox{$^\circ$ }$46 $\hbox{$^\prime$ }$52 $\hbox{$^{\prime\prime}$ }$ 18.58 15.35 13.34 10.83 10.71     Giant?
186 13$^{\rm h}$40$^{\rm m}$58 $\hbox{$.\!\!^{\rm s}$ }$5 $-61\hbox{$^\circ$ }$46 $\hbox{$^\prime$ }$48 $\hbox{$^{\prime\prime}$ }$ 18.96 15.86 13.91         Giant?
A 13$^{\rm h}$41$^{\rm m}$00 $\hbox{$.\!\!^{\rm s}$ }$0 $-61\hbox{$^\circ$ }$46 $\hbox{$^\prime$ }$58 $\hbox{$^{\prime\prime}$ }$ $\geq$19.5 16.80 14.21 10.95 9.81 8.72 7.84 Not detected in J
101 13$^{\rm h}$40$^{\rm m}$59 $\hbox{$.\!\!^{\rm s}$ }$0 $-61\hbox{$^\circ$ }$46 $\hbox{$^\prime$ }$50 $\hbox{$^{\prime\prime}$ }$ 17.85 14.91 13.64         Giant

Giants

2		 13$^{\rm h}$41$^{\rm m}$04 $\hbox{$.\!\!^{\rm s}$ }$5 $-61\hbox{$^\circ$ }$44 $\hbox{$^\prime$ }$41 $\hbox{$^{\prime\prime}$ }$ 11.78 10.60 10.15 9.82 10.03 10.03    
4 13$^{\rm h}$41$^{\rm m}$02 $\hbox{$.\!\!^{\rm s}$ }$6 $-61\hbox{$^\circ$ }$44 $\hbox{$^\prime$ }$45 $\hbox{$^{\prime\prime}$ }$ 13.07 11.08 10.13 9.50 9.60 9.41 9.71  
7 13$^{\rm h}$41$^{\rm m}$05 $\hbox{$.\!\!^{\rm s}$ }$2 $-61\hbox{$^\circ$ }$44 $\hbox{$^\prime$ }$46 $\hbox{$^{\prime\prime}$ }$ 16.11 12.262 10.28 8.87 8.88 8.59 8.49  
28 13$^{\rm h}$41$^{\rm m}$05 $\hbox{$.\!\!^{\rm s}$ }$3 $-61\hbox{$^\circ$ }$44 $\hbox{$^\prime$ }$35 $\hbox{$^{\prime\prime}$ }$ 17.19 13.71 11.91 10.60 10.67      
37 13$^{\rm h}$41$^{\rm m}$05 $\hbox{$.\!\!^{\rm s}$ }$4 -61 $\hbox{$^\circ$ }$44 $\hbox{$^\prime$ }$59 $\hbox{$^{\prime\prime}$ }$ 16.66 13.77 12.30 11.30 11.23 11.54    

Condensation 3

1		 13$^{\rm h}$40$^{\rm m}$38 $\hbox{$.\!\!^{\rm s}$ }3$ -61 $\hbox{$^\circ$ }$47 $\hbox{$^\prime$ }$00 $\hbox{$^{\prime\prime}$ }$ 16.39 15.81 14.83 9.73 8.61 7.62 6.79 Near-IR excess
2 13$^{\rm h}$40$^{\rm m}$32 $\hbox{$.\!\!^{\rm s}$ }$65 -61 $\hbox{$^\circ$ }$47 $\hbox{$^\prime$ }$20 $\hbox{$^{\prime\prime}$ }$ 14.08 12.79 11.82 9.43 9.03 6.76 4.95 Near-IR excess
3 13$^{\rm h}$40$^{\rm m}$26 $\hbox{$.\!\!^{\rm s}$ }$6 -61 $\hbox{$^\circ$ }$47 $\hbox{$^\prime$ }$56 $\hbox{$^{\prime\prime}$ }$ 17.24 14.32 12.57 9.55 7.15 5.89 5.29  
4 13$^{\rm h}$40$^{\rm m}$25 $\hbox{$.\!\!^{\rm s}$ }$2 -61 $\hbox{$^\circ$ }$47 $\hbox{$^\prime$ }$48 $\hbox{$^{\prime\prime}$ }$ 15.50 12.48 11.12 9.03 7.85 7.05 7.03 Giant
5 13$^{\rm h}$40$^{\rm m}$27 $\hbox{$.\!\!^{\rm s}$ }$5 -61 $\hbox{$^\circ$ }$47 $\hbox{$^\prime$ }$50 $\hbox{$^{\prime\prime}$ }$ 15.64 14.21 13.14 9.80 8.67 7.84 7.41 Near-IR excess

Condensation 4

1 nebula		 13$^{\rm h}$39$^{\rm m}$53 $\hbox{$.\!\!^{\rm s}$ }6$ -61 $\hbox{$^\circ$ }$41 $\hbox{$^\prime$ }$21 $\hbox{$^{\prime\prime}$ }$       8.19* 7.94* 5.09* 3.41*  
1 star 13$^{\rm h}$39$^{\rm m}$53 $\hbox{$.\!\!^{\rm s}$ }$68 -61 $\hbox{$^\circ$ }$41 $\hbox{$^\prime$ }$19 $\hbox{$.\!\!^{\prime\prime}$ }$2 12.19 11.45 11.01          
2 13$^{\rm h}$39$^{\rm m}$54 $.\!\!^{\rm s}$7 -61$^\circ$41$^\prime$13 $^{\prime\prime}$ 14.86 14.53 14.25 10.90 9.69 7.15 5.28  
3 13$^{\rm h}$39$^{\rm m}$54 $.\!\!^{\rm s}$2 -61$^\circ$40$^\prime$57 $^{\prime\prime}$ 16.11 14.86 14.24 10.32 9.02 7.83 6.72  
4 13$^{\rm h}$39$^{\rm m}$55 $.\!\!^{\rm s}$9 -61$^\circ$40$^\prime$58 $^{\prime\prime}$ 14.68 13.54 10.62 7.19 6.22* 5.40 4.69 Near-IR excess
5 13$^{\rm h}$39$^{\rm m}$57 $.\!\!^{\rm s}$1 -61$^\circ$40$^\prime$47 $^{\prime\prime}$ 13.87 10.59 9.01 7.80 8.02 7.62 7.62 Giant
6 13$^{\rm h}$40$^{\rm m}$08 $.\!\!^{\rm s}$9 -61$^\circ$41$^\prime$38 $^{\prime\prime}$ 13.91 11.96 10.29 8.72 8.18 7.51 6.38 Near-IR excess
$\textstyle \parbox{15cm}{ {$^{\footnotesize *}$\space Magnitude obtained by aperture photometry (see text).} }$

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