Hubble image archive
Symbiotic Star Mira HM Sge
A Hubble Space Telescope image of the symbiotic star Mira HM Sge. Located 3,400 light-years away in the constellation Sagitta, it consists of a red giant and a white dwarf companion. The stars are too close together to be resolved by Hubble. Material bleeds off the red giant and...
- Date
- Jun 10, 2024
- Mission
- Hubble Space Telescope
- Archive ID
- hubblesite-images-2024-018-01hygwm8a0fm9wfrxsh49dw8wt
A Hubble Space Telescope image of the symbiotic star Mira HM Sge. Located 3,400 light-years away in the constellation Sagitta, it consists of a red giant and a white dwarf companion. The stars are too close together to be resolved by Hubble. Material bleeds off the red giant and falls onto the dwarf, making it extremely bright. This system first flared up as a nova in 1975. The red nebulosity is evidence of the stellar wind. The nebula is about one-quarter light-year across.
Image Details
| About The Object | |
|---|---|
| Object Name | HM Sge |
| Object Description | Symbiotic nova |
| R.A. Position | 19:41:57.080 |
| Dec. Position | +16:44:39.81 |
| Constellation | Sagitta |
| Distance | 3,400 light-years |
| Dimensions | Image is about 30 arcsec across (about 0.45 light-years) |
| About The Data | |
| Data Description | The HST observations include those from program (S. Goldman). Image Processing: Joseph DePasquale (STScI) |
| Instrument | WFC3/UVIS |
| Exposure Dates | April 1, 2021 |
| Filters | F502N, F656N, F658N |
| About The Image | |
| Color Info | These images are a composite of separate exposures acquired by the WFC3/UVIS instrument on the Hubble Space Telescope. Several filters were used to sample various wavelength ranges. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are: Blue= F502N, Green= F656N, Red= F658N |
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Image and source material are credited to the official mission archive linked below.
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