Distance: 12,400 ly
https://en.wikipedia.org/wiki/NGC_1893

Equipment configuration and exposure data:

Mount: Orion HDX110 German equatorial mount controlled by TSXPro (Software Bisque) via EQASCOM
Telescope: Celestron RASA 11 V2. 11" Rowe-Ackermann Schmidt Astrograph, 620mm FL, f/2.2
Imaging camera: ZWO ASI2600MC Pro. Gain 100; Offset 21; Filter: IDAS NBZ.
Image capture scale: AS/P=1.237" (i.e., unbinned). Resized to 50% for display.
Image capture software: Software Bisque TSXPro Camera Addon; Autoguided by PHD2.
Exposures: Best 11 of 12 @ 480s. Calibration: 13 dark frames, 9 flat frames.
Guide camera: ZWO ASI120MM Mini. Autoguide software: PHD2 Guiding 2.6.10dev2. Tracking: ~0.5" Total RMS.
Post processing software: ImagesPlus6.5; LuminarAI from SkyLum; ThumbsPlus Pro 10.

Image source: 20220126_Tadpoles_CombExcAvg-IPddp-LumAI-TPadj4.tif