Two challenges in Leo....

[chiltonstar]

Beta 603 and Sigma 1517  (I've marked them on the SS chart below) have eluded me for some time due to our dreadful climate, but got the chance last night after looking at a selection of 8 globular clusters to test my viewing conditions after the streetlights had been changed recently to LEDs. Beta 603 is close to Beta Leonis, and Sigma 1517 close to Delta.

Beta 603 has a separation of 1.0 arcsec - this was clear and well separated with the Mak 180 despite the lower magnitude of the secondary.

Sigma 1517 (0.7 arcsec) was more difficult - at times it merged, and then the secondary appeared as a small dot just touching the disk of the primary.

Certainly a pair worth looking at if you like a challenge!

Chris

Edited March 25, 2022 by chiltonstar

[Stu]

Thanks Chris. Might give those a go whilst the seeing is quite steady 👍

[Stu]

Well, I managed Beta 603 in the LZOS 130mm, but not Sigma 1517. Nice challenge, thanks Chris.