(Clic on image for higher resolution) |
© manuel fernández 2014 - www.elfirmamento.com |
| LOCATE | INFRARED OBSERVATORY, Leon (Spain). September - October 2013. |
| TELESCOPE | TAKAHASHI TOA 130 APO+REDUCER @ f/5,6 (760 mm) |
| MOUNT | TAKAHASHI EM400 TEMMA 2 |
| CAMERA | CCD QHY9 @-20º |
| GUIDE | SBIG STV CAMERA + EZGUIDER 60mm. |
| EXPOSURE | Ha 24x30 min, OIII 34x30 min, SII 26x30 min. TOTAL 42 Hours. |
| FILTERS | IDAS LPS, Ha Astronomik 6nm, OIII Baader, SII Baader |
| PROCESS | MAXIM, PHOTOSHOP, NOISEWARE, HLVG, Astronomy Tools, Annie's Astro. |
| CALIBRATION | FLATS, DARKS, BIAS |
| NOTES | Narrow band image in HSO palette (Hydrogen corresponds to the red). |
| REFERENCES | www.observatorio.info/2011/08/retrato-ngc-281/ |
NGC 281 is a nebula with a open cluster (IC 1590) with a visual magnitude of 7 and agular size of 35 arc minutes. It is a region of star birth, where the light of the youngs stars ionizes the surrounding gas and makes it shine. It also has dense columnes of gas, dark areas and important Bok globules. The nebulas is located 10,000 light years from Earth and is extension is 80 light years.
