GSH 054-00+003

Right Ascension (hh mm): 19 31
Declination (deg): 18.25
Reference Velocity (km/s): 3.18
Delta RA (hh mm): 00 06
Delta Dec (deg): 1.5
Delta V (km/s): 7.76
Mean Angular Diameter (deg): 1.40
Shape parameter: 0.84
Comments:

Kinematic Distances Information
    Kinematic Distance (kpc): 0.05
    Allowed Range (kpc): - to 0.43
    Kinematic Distance 2 (kpc): 10
    Allowed Range (kpc): 9.7 to 10
Inferred Shell Size
    Shell Diameter (pc): 1.2
    Allowed Range (pc): - to 11
    Shell Diameter 2 (pc): 240
    Allowed Range (pc): 240 to 240
Distance Notes:
       Appears to be in the nearer of 2 spiral arms. Likely the larger distance because a shell less than 10 pc in size is unlikely if embedded in a spiral arm.

Expansion Velocity Information
    Velocity of Front Wall V_f (km/s): -8
    Velocity of Back Wall V_b (km/s): 9
    Expansion Velocity (km/s): 9
    Minimum 'Shell-like' velocity V₁ (km/s): -1
    Maximum 'Shell-like' velocity V₂ (km/s): 6