NGC 6729 (also known as Caldwell 68) is a reflection/emission nebula of the Corona Australis Molecular Cloud in the constellation Corona Australis.
This fan-shaped nebula opens from the star R Coronae Australis toward the star T CrA to the south-east. R CrA is a pre-main-sequence star in the Corona Australis molecular complex, one of the closer star-forming regions of the galaxy at a distance of 130 pc. NGC 6729 is a variable nebula which shows irregular variations in brightness and in shape.
| Object | NGC 6729 Reflection Nebula |
| Constellation: | Corona Australis |
| Position: | RA 19h 01m 46s / Dec -36° 57' 40'' |
| Apparent Size: | 2.5 x 2.0 arcmins |
| Apparent Magnitude: | |
| Distance in light years: | 400 ly |
| Photo Data | |
| Date: | 18 Sept 2020 - 08 Oct 2021 |
| Location: |
El Sauce Observatory Chile (1525m ASL) GPS: 30.472529° S, 70.762999° W |
| Telescope: | CHI-1-CCD: Planewave CDK24 61cm / f6.5/3962mm |
| Camera: | FLI ProLine PL9000, 12μm, 3056x3056, @ T sensor = -10.0° |
| Field of View: | 32' x 32' |
| Pixel Scale/Resolution: | 0.62 arcsec/px |
| Expose frames/times: | L 15x300s,6x450s,25x600s, R 10x300s,11x450s,25x600s, G 10x300s,10x450s,18x600s, B 10x300s,6x450s,11x600s |
| Total expose: | 25h 35min |
| Filter: | Astrodon Luminannce, Red, Green, Blue |
| Mount: | Mathis MI-1000/1250 with absolute encoders |
| Software: | Siril 1.4, Photoshop CC |
| Remarks: |
© Photos and photo data by Peter Cerveny
© Object description/intro text fully or partially by Wikipedia,
which is released under the Creative Commons Attribution-ShareAlike 4.0 International License