Following info comes from Megaranger 1. Here's a shot of the Shuttle.
Here's Dr. Hinelar. He's the current leader of the current baddies.

Here's Hyprus.

Here's Lady Blue.

Here's Ecliptor.
Here are the 5 Astro Morphers.

Here's a close-up of an Astro Morpher.
Here's a shot of part of Ecliptor's Sword.
Here's another shot of Ecliptor.
Here's MegaRed.  
Here's the Pink Space Ranger.
Here's a shot of the Pink Ranger's Astro Blaster. and here's a shot of the Pink Ranger with a mini Astro Blaster and her Black Blaster.
Here are the Craterites.
Here's another shot of Ecliptor.
Here's a shot of the 5 Rangers, Red is holding his Spiral Saber in this shot.
Here's Kenta, he's MegaRed.
Here's Kouchiro, he's MegaBlack.
Here's Shun aka MegaBlue.
Here's Chisato, MegaYellow.
Here's Miku, MegaPink.