What modern number yarn is beehive astra equivalent to?

Image by nd-nʎ
The Beehive Cluster (a.k.a. Praesepe or Messier 44), in the center of the constellation Cancer. It is faintly visible by naked eye as a blob in Houston TX. M44 is a quite big star cluster, so only a focal length of 135mm is needed.

相機/Camera: Canon EOS 40D
鏡頭/Lens: Canon EF 28-135mm F4-5.6 IS USM
焦距/Focal length: 135mm
光圈/Aperture: f/5.6
快門速度/Shutter speed: 2s
總曝光時間/Total exposure time: 5m44s
感光度/ISO: 800
共172張圖以DeepSkyStacker疊合而成/Stacked from 172 images using DeepSkyStacker.

Question by extremelypissedoffallthetime: What modern number yarn is beehive astra equivalent to?
I’ve recently picked up knitting and I have some old patterns which call for yarns that I don’t see in my regular store at the mall. Do you happen to know what modern number yarn is beehive astra equivalent to?

Can you help? Leave your own answer in the comments!