a = 1.1
b = 1.5

with open("sources.reg", "r") as file, open("sources_bkg.reg", "w") as bkg:
	for line in file.readlines():
		vals = line.split(",")
		RA = vals[0].split("(")[1]
		DEC = vals[1]
		if vals[0][0] == "c":
			R1 = R2 = float(vals[2][:-3])
			DIR = "0.00)\n"
			mag = vals[2][-3]
		else:
			R1 = float(vals[2][:-1])
			R2 = float(vals[3][:-1])
			DIR = vals[4]
			mag = vals[2][-1]

		src = f"ellipse({RA},{DEC},{R1 * a:.3g}{mag},{R2 * a:.3g}{mag},{DIR}"
		bkg_line = f"ellipse({RA},{DEC},{R1 * b:.3g}{mag},{R2 * b:.3g}{mag},{DIR[:-1]}"
		bkg.write(bkg_line + "*!" + src)