What is a bortle?

https://youtube.com/shorts/ZiYPDdkH3qw?si=JbgyOYrxvhrfJ3Nf

#orion
#lightpollution
#milkywaygalaxy
#astronomy
#bortle
#educationalshorts
#educationalvideos
#lunarpics
#photography
#astrophotography
#smartphoneastronomy

Do any of you know why Browne Island, Australia is glowing so brightly?

Is that Browne island?

#Australia #Bortle #LightPollution #SkyBrightness #Map

Sesión del día 2 de Abril del 2024, con mi #SeeStar_S50
Imágenes tomadas desde #Guadalajara MX / Zona Plaza del Sol con un #Bortle entre 7/8.. y nubosidad ligera. Procesadas en mi #iPadPro con Photomator

#AstroPhotography

I am rather backlogged on my image processing. Here is the Iris reflection nebula captured from my #Bortle 5/6 back yard on 10/11/12 of May.

112 x 5 minutes through a 6" refractor.

Having the #astrophotography rig inside a dome helps protect it from the growing blight of #LightPollution :=( In this case a streetlight and a neighbour's poorly directed flood light.

#PixInsight #DarkTable

#Astronomy
#nlastro #astrodon

We lucked into a brief window of clear skies with just enough time to capture a few images of last night's blue supermoon.

In our rush, we accidentally took these as FITS instead of RAW, which made for an interesting editing process.

Imaging by @alex #NYC #Bortle 9 /Sony a6300 (ISO 400) / Z61 (f5.9, 360 mm) /AM5 /ZWO asi120mm mini

My process: #SIRIL #PIPP #Autostakkert #Photoshop

#supermoon #astrodon

Last night, we imaged the Hercules Globular Cluster (M13) while waiting for the Helix Nebula and Triangulum Galaxy to become visible from our balcony.

Imaging by @alex #NYC #Bortle 9 / 27 x 180s subs, Sony a6300 (ISO 400) / Z61 (f5.9, 360 mm) /AM5 /ZWO asi120mm mini

My process: #SIRILIC, #SIRIL, #Photoshop

#Astrodon #astrophotography

Here is our latest project after several weeks of terrible astrophotography weather. With a new AM5 mount, we were able to capture two- and three-minute subs. For comparison's sake, we chose to re-image the Lagoon and Trifid Nebulae.

Imaging by @alex #NYC #Bortle 9 / 110 x 120 and 180s subs, Sony a6300 (ISO 400) / Z61 (f5.9, 360 mm) /AM5 /ZWO asi120mm mini

My process: #SIRILIC, #SIRIL, #Photoshop

#Astrodon #astrophotography #M8 #M20

These images of the Lagoon and Trifid Nebulae (M8 and M20, respectively) were only supposed to be test shots! It turns out that using a telescope on a stable surface instead of a dilapidated fire escape dramatically improves the quality of the final image.

Imaging by @alex :
#NYC #Bortle 9 / 132 x 60s subs, Sony a6300 (ISO 400) / Z61 (f5.9, 360 mm) / Star Adventurer 2i /ZWO asi120mm mini

My process: #SIRILIC, #SIRIL, #Photoshop

#Astrodon #astrophotography #M8 #M20

TIL about the #Bortle scale of light pollution. It reminds me of the lava zone map of Hawaii.

https://www.lightpollutionmap.info/