Multiple stellar systems, foreground objects, and AGB stars, occupy the "bluer" part of the diagram, while YSOs, post-AGB stars, and background objects, are found in the "redder" part.
AGB stars, other late-type pulsating giants, multiple stellar systems, and foreground objects, occupy the "bluer" part of the color-magnitude diagrams and YSOs, post-AGB stars, and background objects, tend to be found in the "redder" part.
As in Section 3.1, we divide classified sources into groups of: (1) AGB stars, (2) other late-type pulsating giants, (3) post-AGB stars, (4) multiple stellar systems, (5) YSOs, (6) background objects, (7) foreground objects.
We also found a group of young stellar objects (3.6%), multiple systems (2.5%), post-AGBs (2.0%) and others, of which mostly are related to stars.
For example, in the diagram S7 L24 vs. N3 L15 (middle panel of Fig. 7) it is the only object classified as a multiple stellar system in the "redder" part of the diagram.
AGB stars are shown as small plus signs, other late-type pulsating giants as gray filled circles, post-AGB stars as asterisks, multiple stellar systems as gray diamonds, YSOs as gray X signs, background objects as black asterisks, foreground objects as gray plus signs, other sources as triangles, and unknown sources small, open squares.
In all the color-magnitude diagrams, different types of objects are well separated, there is an especially prominent separation between a group consisting of multiple stellar systems, possible late-type pulsating giants, AGB stars, and foreground objects, and a group including YSOs, post-AGB stars and background objects, as is clearly shown in Fig. 5.
AGB stars are shown as small gray filled circles, other late-type pulsating giants as gray plus signs, post-AGB stars as asterisks, multiple stellar systems as gray open triangles, YSOs as gray diamonds, background objects as black open squares, and foreground objects as black filled triangles.
AGB stars are shown as asterisks, late-type pulsating giants as X sign, multiple stellar systems as triangles, YSOs as diamonds, post-AGB as filled diamonds, background objects as squares, foreground objects as filled triangles, other as circles, sources of an unknown origin as filled squares, and sources not identified as filled circles.
In Fig. 5 (upper panel), we can see a clear separation between two clouds: one formed by foreground objects, AGBs, and possible AGB stars, and multiple stellar systems; and a second one consisting of post-AGBs, YSOs, and background sources.
