... I notice that its light on my note-book is quite rosy or purple, though the sun itself and its halo are merely yellow, and there is no purple in the western sky. ...

... 2 components of ISM Hydrogen - disk + halo . Disk . vary with Galactic radius . ... Near sun, . Need to include spiral arms and HII regions . ... Sun at R = 10 kpc , z =0 . Calibrate using other methods . ...

... astrometry celestial mechanics eclipses ephemerides occultations parallaxes proper motions reference systems time The Sun Sun: abundances Sun: activity Sun: atmosphere Sun: chromosphere Sun: corona Sun: coronal mass ejections (CMEs) Sun: dynamo Sun ...

... 2015) SUNSPOT-FORMING ACTIVITY OF THE SUN REMAINED ON THE AVERAGE LE- VEL AND ONLY ... ON THE VISIBLE DISK OF THE SUN CONSTANT- LY OBSERVED 4-2 SUNSPOT GROUPS, ONE OF ...

... radio emission structure of the Quiet Sun (a so-called "radio granulation"); · Neutral line asso ciated sources in solar active regions; · Non-thermal radio emission ab ove sunsp ots groups, so named "the decimetre halo"; · Cyclotron lines in the active ...

... with 5-degree step in the position angle, which is measured along the limb from the north pole of the Sun through the east ... The intensities (both of the line and of the halo) are expressed in millionths of intensity of a continuous spectrum region ...

... The first column shows the kinematical diagrams, where is the angle between the line of sight on the object and the vector of rotation about Z -axis, and V S is objects line-of-sight velocity relative to an observer at rest at the position of the Sun. ...