Hi Andrew & All,
The star-group you have drawn is sometimes known as "jaws" because in a medium-sized 'scope it has a superficial resemblance to a shark seen side-on.
You can read more about it here:
http://www.backyard-astro.com/deepsky/top100/15.html
and here:
http://www.deep-sky.co.uk/asterisms.htm
Attached is a Megastar map with a Realsky (digitised sky survey) overlay which shows its position in relation to M104. The object you have specifically circled is a 13th mag star:
GSC 5531:1441 STAR
RA: 12h 38m 29.05s Dec: -11° 32' 53.0"
Pos err: 0.4 arcsec Mag: 13.0 / 0.3
The USNO A2 provides the fololowing catalogue data:
0750-07905586
RA 12 38 29.13 Dec -11 32 53.0
Mag 13.05
You can see a mouse-over skymap of M104 and surrounds here:
http://www.sky-map.org/?ra=12.651297...mg_source=DSS2
Hope that helps.
Best,
Les D