Nakshatra Calculation

Here is a reference table for calculating Nakshatra & Nakshatra lord given the longitude/ degree:

No	Nakshatra(Star)	Longitude(Sign-Deg- Min)	Lord
1	Aswini	00-00-00	Ketu
2	Bharani	00-13-20	Venus
3	Kritika	00-26-40	Sun
4	Rohini	01-10-00	Moon
5	Mrigasira	01-23-20	Mars
6	Aridra	02-06-40	Rahu
7	Punarvasu	02-20-00	Jupiter
8	Pushya	03-03-20	Saturn
9	Aslesha	03-16-40	Mercury
10	Magha	04-00-00	Ketu
11	Poorvaphalguni	04-13-20	Venus
12	Uttaraphalguni	04-26-40	Sun
13	Hasta	05-10-00	Moon
14	Chitra	05-23-20	Mars
15	Swati	06-06-40	Rahu
16	Visakha	06-20-00	Jupiter
17	Anuradha	07-03-20	Saturn
18	Jyehsta	07-16-40	Mercury
19	Moola	08-00-00	Ketu
20	Poorvashadha	08-13-20	Venus
21	Uttarashadha	08-26-40	Sun
22	Sravana	09-10-00	Moon
23	Dhanshita	09-23-20	Mars
24	Satabisha	10-06-40	Rahu
25	Poorvabhadrapada	10-20-00	Jupiter
26	Uttarabhadrapada	11-03-20	Saturn
27	Revati	11-16-40	Mercury

You can also calculate your Nakshatra from AstroSage.com by casting your chart and looking at birth details page.