EkGo 3 and EkGo 4
taEkGo 3 and EkGo 4 - Two Possible Planetary Nebulae in Close Proximity
Another joint initiative by Team EkGo - myself and Sven Eklund.
While imaging PaJ1940.3+1855 and Kronberger 43 we spotted a couple of anomalies in the OIII data. After deeper analysis these were identified as unconfirmed planetary nebulae. These have now been registered in our planetary nebula catalog on planetarynebulae.net as EkGo 3 and EkGo 4. This simulatenous discovery of two possible planetary nebulae so close together is uncommon.
Another joint initiative by Team EkGo - myself and Sven Eklund.
While imaging PaJ1940.3+1855 and Kronberger 43 we spotted a couple of anomalies in the OIII data. After deeper analysis these were identified as unconfirmed planetary nebulae. These have now been registered in our planetary nebula catalog on planetarynebulae.net as EkGo 3 and EkGo 4. This simulatenous discovery of two possible planetary nebulae so close together is uncommon.
TARGET
Nomenclature: EkGo 3 and EkGo 4
Right Ascension EkGo 3: 19:42:14.71
Declination EkGo 3: 19:29.11.77
Right Ascension EkGo 4: 19:43:40.11
Declination EkGo 4: 19:41.10.00
Size: 1.6 arc minutes (EkGo 3) 1.8x0.8 arc minutes (EkGo 4)
Discovery: Sven Eklund and Peter Goodhew 2023
EQUIPMENT USED
Twin APM TMB LZOS 152 refractors, Celestron C14 Edge HD
10Micron GM2000 HPS mount and 10Micron GM3000 HPS mount
Twin QSI6120 CCD cameras, AZO ASI6200MM Pro cameras
IMAGE CAPTURE
OIII 3nm: 578x120" bin 1x1
Ha 5nm: 510x120" bin 1x1 and 113x900" bin 1x1
Red: 35x300" bin 1x1
Green: 36x300" bin 1x1
Blue: 34x300" bin 1x1
Total integration: 73 hours 16 minutes
Pixel scale: 0.533 arcsec/pixel
Field radius: 0230 degrees
Capture dates: 7 August - 15 September 2023
Capture location: Fregenal de la Sierra, Spain
OIII 3nm: 578x120" bin 1x1
Ha 5nm: 510x120" bin 1x1 and 113x900" bin 1x1
Red: 35x300" bin 1x1
Green: 36x300" bin 1x1
Blue: 34x300" bin 1x1
Total integration: 73 hours 16 minutes
Pixel scale: 0.533 arcsec/pixel
Field radius: 0230 degrees
Capture dates: 7 August - 15 September 2023
Capture location: Fregenal de la Sierra, Spain
IMAGE PROCESSING
Pre-processing: CCDStack2
Post-processing: Photoshop CS2
Pre-processing: CCDStack2
Post-processing: Photoshop CS2