Strottner-Drechsler 124, (StDr 124)
Published 30 Jan 26
StDr124
StDr 124 Ha starless and continuum subtracted showing the faint H𝛼 emission
Annotated image of StDr124
About this object
Strottner-Drechsler 124 (StSr124) is a planetary nebula candidate in the constellation Pegasus. It's fairly large with a size of approximately 33 arc min. StDr124 seems to have only H𝛼 emission. I did not detect any appreciable [OIII] emission. StDr 124 is really faint and required considerable stretching to be visible. To me it StDr 124 seems more like a ISM nebula but will leave that to the professionals to determine. Also within the image is an area of molecular dust call PGCC G091.40-19.27. Other very faint H𝛼 emission is visible barely above the background. Quite a few faint PGC galaxies also are present in this field. The image was taken with Stellarvue SV 80s f6 refractor along with a ZWO ASI 2600 MC pro camera. The H𝛼/OIII data was taken using a Antlia ALP-T 5nm H𝛼/OIII filter. Total exposure time 22.23 hrs.
Strottner-Drechsler 124 (StSr124) is a planetary nebula candidate in the constellation Pegasus. It's fairly large with a size of approximately 33 arc min. StDr124 seems to have only H𝛼 emission. I did not detect any appreciable [OIII] emission. StDr 124 is really faint and required considerable stretching to be visible. To me it StDr 124 seems more like a ISM nebula but will leave that to the professionals to determine. Also within the image is an area of molecular dust call PGCC G091.40-19.27. Other very faint H𝛼 emission is visible barely above the background. Quite a few faint PGC galaxies also are present in this field. The image was taken with Stellarvue SV 80s f6 refractor along with a ZWO ASI 2600 MC pro camera. The H𝛼/OIII data was taken using a Antlia ALP-T 5nm H𝛼/OIII filter. Total exposure time 22.23 hrs.
Image Details
- Optics : Stellarvue SV80s refractor @f6, 480mm FL
- Mount: ZWO AM5
- Camera: ZWO ASI2600 MC pro
- Filters: Antlia ALP-T H𝛼/OIII filter for the the narrowband data
- Exposure (min): RGB 162@120sec, 326min, 5.43hrs, H𝛼/OIII 137@600sec, 1370min, 22.8hrs
- Automation Control: ASI air
- Guiding: ZWO ASI 120 mm mini
- Processing Software: PixInsight
- Location: Stark Bayou Observatory Ocean Springs, MS
- Sky: Bortle 5-6
- Date: Aug 20-27 2025
