Thanks to Taichi and Brian for the info on SS Cru. How does the reference to 'blue' apply here? >USNO0300.15022196 121002.931 -563936.59 (2000.0) 10.0 15.2 >IRAS12074-5622 120724.2 -562247 (1950.0) > F12=30.19 F25=13.18 F60=2.29 F100=10.96L > VAR=16 LRS=21 > blue, 10micron (silicate) emission, strength=1 > II: variable star with 'young' O-rich circumstellar shell Does this imply a companion star or symbiotic nature? Regards Peter Williams Heathcote NSW