Mo 17
Variable Nebula · Canis Major · PN-G 248.9−03.6
$130,000+
Variable nebulae are exceptionally rare: their brightness visibly shifts over months or years as moving dust casts shadows from the star that illuminates them.
Canis Major — the Greater Dog — home to Sirius, the brightest star in Earth's night sky.
| Scientific Designation | PN-G 248.9−03.6 |
| Object Type | Variable Nebula |
| Constellation | Canis Major |
| Coordinates (J2000) | RA 07h 50m 14.12s Dec −33° 26′ 36.0″ |
| Angular Dimensions | 0.7 × 0.5 arcmin |
| Imagery Source | DECaPS — DECam Plane Survey (NOIRLab, archival) |
| Publication | L'Astronomie, March 2019, vol. 133, No. 125, p.54 |
